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General Category => General Homebrew Discussion => Topic started by: trapae on October 27, 2017, 02:40:25 PM

Title: Dry hopping in the keg questions ?
Post by: trapae on October 27, 2017, 02:40:25 PM
 I’m thinking about doing this and just wondering peoples’ techniques and experiences? I know some people leave it in the entire life of the keg and some people take it out. Just wondering what people do, and if you experience any of flavors, vegetal?   And how the flavor is different from normal dry hopping?
Thanks
Title: Re: Dry hopping in the keg questions ?
Post by: kramerog on October 27, 2017, 02:55:56 PM
I routinely dry hop in the keg.  Now that I'm controlling oxygen exposure by doing closed rackings to the keg, I leave the hops in until the keg kicks and don't get grassy flavors.  The reason why I hop in the keg is that the aromas are stronger.
Title: Re: Dry hopping in the keg questions ?
Post by: EnkAMania on October 27, 2017, 03:25:43 PM
I use  http://www.clearbeerdraughtsystem.com/ so I'm able to throw the hops in the keg without a bag.  I have never gotten that grassy taste people quote. 
Title: Re: Dry hopping in the keg questions ?
Post by: Kevin on October 27, 2017, 05:32:41 PM
I used to use a bag to hop in the keg but I recent bought one of those cylindrical hop containers. I just tie a piece of plain dental floss to the top of the bag/container and put on the lid letting the other end of the floss t hang outside. Works great. I've got an IPA dry hopping right now.
Title: Re: Dry hopping in the keg questions ?
Post by: Stevie on October 27, 2017, 06:19:33 PM
I use weighted bags and a stainless filter. The stainless developed some rust spots, so I haven’t used it in a while.
Title: Re: Dry hopping in the keg questions ?
Post by: denny on October 27, 2017, 06:26:29 PM
I use weighted bags and a stainless filter. The stainless developed some rust spots, so I haven’t used it in a while.

I've never found the weights to make a difference.  Have you tried it unweighted and found they did?
Title: Re: Dry hopping in the keg questions ?
Post by: Stevie on October 27, 2017, 06:44:34 PM
I did unweighted in the past and the lid was a hassle to get on. I rack into a closed keg now, so that may not matter.
Title: Re: Dry hopping in the keg questions ?
Post by: trapae on October 27, 2017, 09:21:46 PM
 So seems like most people are leaving the hops in the entire keg life.   Any opinions on the taste/aroma difference between “ normal “  dry hopping and keg dry hopping?
Title: Re: Dry hopping in the keg questions ?
Post by: a10t2 on October 27, 2017, 09:44:57 PM
I routinely dry hop in the keg.  Now that I'm controlling oxygen exposure by doing closed rackings to the keg, I leave the hops in until the keg kicks and don't get grassy flavors.  The reason why I hop in the keg is that the aromas are stronger.

How are you getting the hops into the keg?

I swear, I'm *this* close to building a CO2 glove box for packaging days.
Title: Re: Dry hopping in the keg questions ?
Post by: kramerog on October 28, 2017, 12:23:47 AM
I routinely dry hop in the keg.  Now that I'm controlling oxygen exposure by doing closed rackings to the keg, I leave the hops in until the keg kicks and don't get grassy flavors.  The reason why I hop in the keg is that the aromas are stronger.

How are you getting the hops into the keg?

I swear, I'm *this* close to building a CO2 glove box for packaging days.
The dry hopping is probably the biggest contributor to oxygen now.  After racking, I put the bagged hops in and purge the headspace several times.  Anyway, my IPAs are pretty stable over 3 months.

Sent from my XT1095 using Tapatalk

Title: Re: Dry hopping in the keg questions ?
Post by: Stevie on October 28, 2017, 01:44:02 AM
Keg hopping is just easier IMO
Title: Re: Dry hopping in the keg questions ?
Post by: juggabrew303 on October 28, 2017, 05:29:38 AM
Using this for the first time and it’s awesome.  No vegetal here but I’m DH with the cryo hops from this day forward.   

http://scottjanish.com/my-favorite-way-to-dry-hop-loose-in-primary-and-kegs/


Sent from my iPhone using Tapatalk
Title: Re: Dry hopping in the keg questions ?
Post by: denny on October 28, 2017, 02:26:23 PM
So seems like most people are leaving the hops in the entire keg life.   Any opinions on the taste/aroma difference between “ normal “  dry hopping and keg dry hopping?

I find keg hopping gives me more flavor and aroma for a longer time.
Title: Re: Dry hopping in the keg questions ?
Post by: ultravista on October 28, 2017, 02:42:27 PM
I use a 11.5" 400 Micron Stainless Corny Keg Dry Hop Filter. I just tie a piece of plain dental floss to the top of the filter lid and secure the floss to the underside of the lid, the well for the purge valve, with a small stainless steel hose clamp.

I do not recommend routing the floss over/under the lid seal to the outside of the keg. Doing this resulted in poor seals, with and without keg lube.

https://utahbiodieselsupply.com/brewingfilters.php#cornydryhopper

I have two of these filters and don't over fill either one. A few ounces of hops expand like a mother trucker, and I suspect, lead to inefficient extraction if not agitated and allowed to expand/compress.

The hops stay in the keg for the duration unless I need the filter for something else. Not a heavy consumer, I have left the hops in the keg for 4+ months with no vegetal off-flavors (to my pallet).
Title: Re: Dry hopping in the keg questions ?
Post by: ultravista on October 28, 2017, 02:45:43 PM
I find keg hopping gives me more flavor and aroma for a longer time.

Denny - do you leave the hops in the keg until the keg kicks? What is the longest you've done this? My kegs last a few months ...
Title: Re: Dry hopping in the keg questions ?
Post by: denny on October 28, 2017, 03:53:14 PM
I find keg hopping gives me more flavor and aroma for a longer time.

Denny - do you leave the hops in the keg until the keg kicks? What is the longest you've done this? My kegs last a few months ...

Same here.  Average time for hops in the keg is 2-3 months.
Title: Re: Dry hopping in the keg questions ?
Post by: ultravista on October 28, 2017, 04:33:02 PM
Good to know Denny ;D.

For me, laziness is the sole reason the hops stay in the keg.
Title: Re: Dry hopping in the keg questions ?
Post by: denny on October 28, 2017, 04:51:06 PM
Good to know Denny ;D.

For me, laziness is the sole reason the hops stay in the keg.

yeah, there's that, too!
Title: Re: Dry hopping in the keg questions ?
Post by: blatz on October 30, 2017, 02:04:44 PM
I have a couple of kegs dedicated to dryhopping.  I use a Surescreen on the diptube, purge the dryhop keg, hook CO2 up at 2PSI to the liquid out while opening the bail to dump in the dryhops.  I let that run for a little bit.

Then I push beer into the dryhop keg from the fermenter.  dryhop for however many days I want, cold crash under CO2 and then push the beer from the dryhopped keg into a fresh, purged serving keg.

works well for me.
Title: Re: Dry hopping in the keg questions ?
Post by: brewinhard on October 30, 2017, 05:24:23 PM
I have a couple of kegs dedicated to dryhopping.  I use a Surescreen on the diptube, purge the dryhop keg, hook CO2 up at 2PSI to the liquid out while opening the bail to dump in the dryhops.  I let that run for a little bit.

Then I push beer into the dryhop keg from the fermenter.  dryhop for however many days I want, cold crash under CO2 and then push the beer from the dryhopped keg into a fresh, purged serving keg.

works well for me.

Those sure screens don't clog up on you Paul? Are you using pellets or whole hops?
Title: Re: Dry hopping in the keg questions ?
Post by: blatz on October 30, 2017, 05:47:12 PM
I have a couple of kegs dedicated to dryhopping.  I use a Surescreen on the diptube, purge the dryhop keg, hook CO2 up at 2PSI to the liquid out while opening the bail to dump in the dryhops.  I let that run for a little bit.

Then I push beer into the dryhop keg from the fermenter.  dryhop for however many days I want, cold crash under CO2 and then push the beer from the dryhopped keg into a fresh, purged serving keg.

works well for me.

Those sure screens don't clog up on you Paul? Are you using pellets or whole hops?

surprisingly, no.  *knocks on wood* I was nervous about it the first time or two, but Ive been doing this method for about 3 years or more and haven't had a problem.  The fail safe would be to gently lay the keg to its side, slightly elevate the bottom and rack out of the gas dip tube.

edit - forgot to mention I use only Pellets.
Title: Re: Dry hopping in the keg questions ?
Post by: denny on October 30, 2017, 07:26:19 PM
I have a couple of kegs dedicated to dryhopping.  I use a Surescreen on the diptube, purge the dryhop keg, hook CO2 up at 2PSI to the liquid out while opening the bail to dump in the dryhops.  I let that run for a little bit.

Then I push beer into the dryhop keg from the fermenter.  dryhop for however many days I want, cold crash under CO2 and then push the beer from the dryhopped keg into a fresh, purged serving keg.

works well for me.

Those sure screens don't clog up on you Paul? Are you using pellets or whole hops?

surprisingly, no.  *knocks on wood* I was nervous about it the first time or two, but Ive been doing this method for about 3 years or more and haven't had a problem.  The fail safe would be to gently lay the keg to its side, slightly elevate the bottom and rack out of the gas dip tube.

edit - forgot to mention I use only Pellets.

I've used both pellets and whole with Sure Screeens without problems.
Title: Re: Dry hopping in the keg questions ?
Post by: zwiller on October 30, 2017, 09:16:21 PM
What's it like to clean a keg that DH was done in?  This cannot be easy. 
Title: Re: Dry hopping in the keg questions ?
Post by: HoosierBrew on October 30, 2017, 09:53:05 PM
What's it like to clean a keg that DH was done in?  This cannot be easy. 


Dry hop in a zip tied 5 gallon paint strainer bag, pretty damn easy.   :)
Title: Re: Dry hopping in the keg questions ?
Post by: brewsumore on October 31, 2017, 02:22:11 AM
What's it like to clean a keg that DH was done in?  This cannot be easy. 


Dry hop in a zip tied 5 gallon paint strainer bag, pretty damn easy.   :)

Jon, I was wondering how you keg hop your IPAs with 5 oz of hops!  I see you have a method that works!

I use a nylon mesh drawstring bag, different size depending on how many ounces of pellet hops.  I use the corny lids that have a welded tab with a hole on the underside, and tie off the bag so that it will hang free once beer is drained below 1/3 - 1/2 full in the keg.

I normally don't exceed 3.5 oz of hops.  If I double dry hop, first addition goes into the fermenter.
Title: Re: Dry hopping in the keg questions ?
Post by: HoosierBrew on October 31, 2017, 11:52:44 AM
What's it like to clean a keg that DH was done in?  This cannot be easy. 


Dry hop in a zip tied 5 gallon paint strainer bag, pretty damn easy.   :)

Jon, I was wondering how you keg hop your IPAs with 5 oz of hops!  I see you have a method that works!

I use a nylon mesh drawstring bag, different size depending on how many ounces of pellet hops.  I use the corny lids that have a welded tab with a hole on the underside, and tie off the bag so that it will hang free once beer is drained below 1/3 - 1/2 full in the keg.

I normally don't exceed 3.5 oz of hops.  If I double dry hop, first addition goes into the fermenter.

Well, now that I switched kegs over to the Clear Beer Draft Systems (which draw from the top), I use two 5 gallon paint strainer bags, one inside the other, and weighted down with marbles to sit on the bottom of the keg. I double bag for extra filter capacity. With the beer being drawn from the top now, I like to keep the hops as far away as possible from the draw point as I can. Before, I had batches that would occasionally pick up some harsh hop character because the bag settled down by the dip tube and some fine particulate got sucked into the tube. With this new setup, there's none of that. Aside from that, I'm spunding now and given its ability to thoroughly purge the O2 from a keg, there's very little drop off in hop aromas as compared to before.

Edit for grammar (OCD).
Title: Re: Dry hopping in the keg questions ?
Post by: narcout on October 31, 2017, 03:49:58 PM
Well, now that I switched kegs over to the Clear Beer Draft Systems (which draw from the top), I use two 5 gallon paint strainer bags, one inside the other, and weighted down with marbles to sit on the bottom of the keg.

How do you like the clear draft floats? 

I just ordered one yesterday and plan to keg an APA with it this weekend (dry hopped this one in the fermentor though).
Title: Re: Dry hopping in the keg questions ?
Post by: HoosierBrew on October 31, 2017, 03:55:51 PM
Well, now that I switched kegs over to the Clear Beer Draft Systems (which draw from the top), I use two 5 gallon paint strainer bags, one inside the other, and weighted down with marbles to sit on the bottom of the keg.

How do you like the clear draft floats? 

I just ordered one yesterday and plan to keg an APA with it this weekend (dry hopped this one in the fermentor though).


They work as advertised, no issues. Money really well spent IMO. Very easy to install, works reliably. Crash a couple days after the spund and the beer is surprisingly clear. Big fan.
Title: Re: Dry hopping in the keg questions ?
Post by: denny on October 31, 2017, 04:00:22 PM
What's it like to clean a keg that DH was done in?  This cannot be easy.

Rinse it out, hit it with some Craftmeister, that's it.
Title: Re: Dry hopping in the keg questions ?
Post by: Stevie on October 31, 2017, 04:10:18 PM
What's it like to clean a keg that DH was done in?  This cannot be easy.

Rinse it out, hit it with some Craftmeister, that's it.
Just don’t let it sit dry for a long time. Stuck on hop crud sucks to get off. I miss the days I could reach the bottom of a keg with a scrub pad.
Title: Re: Dry hopping in the keg questions ?
Post by: bayareabrewer on October 31, 2017, 05:31:08 PM
 keg hopping is frustrating to me and I think I may have developed a solution. I normally fill my kegs with sanitizer and push out with CO2, hopefully getting an oxygen free keg. The only problem is, popping the keg open to toss in a bag of dry hops probably introduces a ton of 02. What if I took a keg that was clean and sanitized, added a sack of dry hops to in, then during primary fermentation connected the airlock to my outpost on my keg so that the ensuing fermentation would purge the keg of 02 as it was replaced with c02 from fermentation. I'd have a spunding valve set to 1 or 2 psi on the inpost to allow 02 to escape.

Would this in theory leave me with an 02 free keg with dry hops in it that I could then do a closed transfer?
Title: Re: Dry hopping in the keg questions ?
Post by: a10t2 on October 31, 2017, 06:25:25 PM
I foresee two potential issues:

1. Your hops would be sitting at fermentation temperature for a couple weeks. Not ideal but maybe not a deal-breaker.

2. A slow trickle of CO2 leaves plenty of time for diffusion to homogenize the gases in the receiving keg. Fermentation produces ~20 vol CO2, so if the keg started out full of air (~20% O2), the end result, at least theoretically, would be a keg with ~1% O2 content.
Title: Re: Dry hopping in the keg questions ?
Post by: bayareabrewer on October 31, 2017, 06:57:31 PM
I foresee two potential issues:

1. Your hops would be sitting at fermentation temperature for a couple weeks. Not ideal but maybe not a deal-breaker.

2. A slow trickle of CO2 leaves plenty of time for diffusion to homogenize the gases in the receiving keg. Fermentation produces ~20 vol CO2, so if the keg started out full of air (~20% O2), the end result, at least theoretically, would be a keg with ~1% O2 content.

damn
Title: Re: Dry hopping in the keg questions ?
Post by: denny on October 31, 2017, 06:57:56 PM
keg hopping is frustrating to me and I think I may have developed a solution. I normally fill my kegs with sanitizer and push out with CO2, hopefully getting an oxygen free keg. The only problem is, popping the keg open to toss in a bag of dry hops probably introduces a ton of 02. What if I took a keg that was clean and sanitized, added a sack of dry hops to in, then during primary fermentation connected the airlock to my outpost on my keg so that the ensuing fermentation would purge the keg of 02 as it was replaced with c02 from fermentation. I'd have a spunding valve set to 1 or 2 psi on the inpost to allow 02 to escape.

Would this in theory leave me with an 02 free keg with dry hops in it that I could then do a closed transfer?

I talked about the same thing on the podcast. A listener off
ered the solution to keep 1-2 psi on the keg when you open it. Makes sense.
Title: Re: Dry hopping in the keg questions ?
Post by: blatz on October 31, 2017, 07:01:32 PM
A listener off
ered the solution to keep 1-2 psi on the keg when you open it. Makes sense.

that's what I do when I open the bail on my purged DH keg (gas hooked up to liquid side though) seems to work well.

is it perfect?  no - there is still oxygen in there.  Its an improvement over previous methods though.
Title: Re: Dry hopping in the keg questions ?
Post by: bayareabrewer on October 31, 2017, 08:14:51 PM
keg hopping is frustrating to me and I think I may have developed a solution. I normally fill my kegs with sanitizer and push out with CO2, hopefully getting an oxygen free keg. The only problem is, popping the keg open to toss in a bag of dry hops probably introduces a ton of 02. What if I took a keg that was clean and sanitized, added a sack of dry hops to in, then during primary fermentation connected the airlock to my outpost on my keg so that the ensuing fermentation would purge the keg of 02 as it was replaced with c02 from fermentation. I'd have a spunding valve set to 1 or 2 psi on the inpost to allow 02 to escape.

Would this in theory leave me with an 02 free keg with dry hops in it that I could then do a closed transfer?

I talked about the same thing on the podcast. A listener off
ered the solution to keep 1-2 psi on the keg when you open it. Makes sense.

I'm sure that's better than not having the gas on, but wouldn't the hops and bag themselves contain a lot of o2?

I'm really hoping that with all the new forms of hop products out there, someone finally produces an acceptable hop extract that can be injected into the beer via the gas in. Maybe a screen around the outpost in the keg and use degassed water and hop hash?
Title: Re: Dry hopping in the keg questions ?
Post by: Stevie on October 31, 2017, 08:24:34 PM
They exist, Bryan Rabe uses them in his kegging procedures.
Title: Re: Dry hopping in the keg questions ?
Post by: denny on October 31, 2017, 08:52:09 PM
keg hopping is frustrating to me and I think I may have developed a solution. I normally fill my kegs with sanitizer and push out with CO2, hopefully getting an oxygen free keg. The only problem is, popping the keg open to toss in a bag of dry hops probably introduces a ton of 02. What if I took a keg that was clean and sanitized, added a sack of dry hops to in, then during primary fermentation connected the airlock to my outpost on my keg so that the ensuing fermentation would purge the keg of 02 as it was replaced with c02 from fermentation. I'd have a spunding valve set to 1 or 2 psi on the inpost to allow 02 to escape.

Would this in theory leave me with an 02 free keg with dry hops in it that I could then do a closed transfer?

I talked about the same thing on the podcast. A listener off
ered the solution to keep 1-2 psi on the keg when you open it. Makes sense.

I'm sure that's better than not having the gas on, but wouldn't the hops and bag themselves contain a lot of o2?

I'm really hoping that with all the new forms of hop products out there, someone finally produces an acceptable hop extract that can be injected into the beer via the gas in. Maybe a screen around the outpost in the keg and use degassed water and hop hash?

Forget hop hash..it's pre oxidized.  I've been using cryo hops for dry hopping.  Virtually no O2 there.  And I have inside info about new extracts being worked on...what you ask about is on the horizon.
Title: Re: Dry hopping in the keg questions ?
Post by: a10t2 on October 31, 2017, 09:00:27 PM
Unfortunately, I don't think anyone repackages in homebrewer quantities, but single-varietal extracts have been on the market for years. Sometimes they're the only way to spot buy something as popular as Citra, for example.
Title: Re: Dry hopping in the keg questions ?
Post by: bayareabrewer on October 31, 2017, 09:01:32 PM
They exist, Bryan Rabe uses them in his kegging procedures.

I'm sure he does.
Title: Re: Dry hopping in the keg questions ?
Post by: bayareabrewer on October 31, 2017, 09:02:13 PM
keg hopping is frustrating to me and I think I may have developed a solution. I normally fill my kegs with sanitizer and push out with CO2, hopefully getting an oxygen free keg. The only problem is, popping the keg open to toss in a bag of dry hops probably introduces a ton of 02. What if I took a keg that was clean and sanitized, added a sack of dry hops to in, then during primary fermentation connected the airlock to my outpost on my keg so that the ensuing fermentation would purge the keg of 02 as it was replaced with c02 from fermentation. I'd have a spunding valve set to 1 or 2 psi on the inpost to allow 02 to escape.

Would this in theory leave me with an 02 free keg with dry hops in it that I could then do a closed transfer?

I talked about the same thing on the podcast. A listener off
ered the solution to keep 1-2 psi on the keg when you open it. Makes sense.

I'm sure that's better than not having the gas on, but wouldn't the hops and bag themselves contain a lot of o2?

I'm really hoping that with all the new forms of hop products out there, someone finally produces an acceptable hop extract that can be injected into the beer via the gas in. Maybe a screen around the outpost in the keg and use degassed water and hop hash?

Forget hop hash..it's pre oxidized.  I've been using cryo hops for dry hopping.  Virtually no O2 there.  And I have inside info about new extracts being worked on...what you ask about is on the horizon.

can you share anymore?
Title: Re: Dry hopping in the keg questions ?
Post by: denny on November 01, 2017, 03:57:27 PM
Unfortunately, I don't think anyone repackages in homebrewer quantities, but single-varietal extracts have been on the market for years. Sometimes they're the only way to spot buy something as popular as Citra, for example.

It's coming....
Title: Re: Dry hopping in the keg questions ?
Post by: denny on November 01, 2017, 03:58:53 PM
can you share anymore?

Bryan Pierce of YCH alluded to it in the interview we did with him for the podcast.
Title: Re: Dry hopping in the keg questions ?
Post by: a10t2 on November 01, 2017, 04:15:00 PM
It's coming....

Need any beta testers? ;)
Title: Re: Dry hopping in the keg questions ?
Post by: denny on November 01, 2017, 05:02:12 PM
It's coming....

Need any beta testers? ;)

I'll let ya know when I know more.
Title: Re: Dry hopping in the keg questions ?
Post by: brewinhard on November 01, 2017, 06:39:06 PM
I foresee two potential issues:

1. Your hops would be sitting at fermentation temperature for a couple weeks. Not ideal but maybe not a deal-breaker.

2. A slow trickle of CO2 leaves plenty of time for diffusion to homogenize the gases in the receiving keg. Fermentation produces ~20 vol CO2, so if the keg started out full of air (~20% O2), the end result, at least theoretically, would be a keg with ~1% O2 content.

damn

You may have better luck fully purging the keg with sanitzer first by fully filling, then pushing it out. Then pop the bail and add your dry hops.
Then you could attach your line from your fermenter to purge out any introduced O2 from adding the dry hops. May get you a bit closer to lower levels desired.

I have had good luck with spunding in the keg on top of the dry hops with residual extract remaining. The active yeast mop up any available O2 pretty quickly and leave you with that fresh dry hopped nose. Just a thought...
Title: Re: Dry hopping in the keg questions ?
Post by: HoosierBrew on November 01, 2017, 06:45:58 PM

I have had good luck with spunding in the keg on top of the dry hops with residual extract remaining. The active yeast mop up any available O2 pretty quickly and leave you with that fresh dry hopped nose. Just a thought...


Yep, I'm pretty happy with the final product using this approach.
Title: Re: Dry hopping in the keg questions ?
Post by: narcout on November 01, 2017, 06:58:10 PM

I have had good luck with spunding in the keg on top of the dry hops with residual extract remaining. The active yeast mop up any available O2 pretty quickly and leave you with that fresh dry hopped nose. Just a thought...


Yep, I'm pretty happy with the final product using this approach.

I just tried it for the first time this week (not spunding but adding dry hops to the primary while fermentation was still active, though winding down).

I added them on day 4.  I was hoping to keg on day 8, but I was busy and didn't get around to it.  I'm hoping to get it kegged up tomorrow night (day 12).
Title: Re: Dry hopping in the keg questions ?
Post by: trapae on November 01, 2017, 07:50:40 PM
Denny,  how do you like the results of dry hopping with cryo-hops, and are you using half your normal amount of pellet hops for it?
Title: Re: Dry hopping in the keg questions ?
Post by: denny on November 01, 2017, 07:54:21 PM
Denny,  how do you like the results of dry hopping with cryo-hops, and are you using half your normal amount of pellet hops for it?

I like it a lot and I use about the same amount as I would with regular pellets.
Title: Re: Dry hopping in the keg questions ?
Post by: Hooper on November 04, 2017, 02:00:10 AM
Decided to dry hop the keg (1st time I've tried this). 1st few beers after dropping the hops in were a tad hazy...then the CO2 tank went flat. The HBS here in Denver said to go to the Hydroponics store to get CO2. Wow...there's more pot growing stores here than beer brewing stores...great $10 exchange at the Hydro store down the street...the beer is running clear and hoppy...
Title: Re: Dry hopping in the keg questions ?
Post by: Kutaka on November 05, 2017, 09:21:18 PM
A question for the people who sink the hop bag to the bottom of the keg.  I have done this several times and the result is the first 3-4 pints are super hoppy.  Then suddenly the rest of the keg isn't super hoppy even on the same day.  So I switched to free floating bags that eventually sink.  The result is hop aroma is more homogeneous throughout the entire keg. 

I guess my question is how can you sink the hops from the beginning and not experience the same thing I have? 
Title: Re: Dry hopping in the keg questions ?
Post by: HoosierBrew on November 05, 2017, 09:47:40 PM
To be clear, the reason I sink the bag now is to keep it away from the Clear Beer float which draws from the top.
Title: Re: Dry hopping in the keg questions ?
Post by: Kutaka on November 05, 2017, 09:52:06 PM
That makes sense.
Title: Re: Dry hopping in the keg questions ?
Post by: chrisv on August 24, 2018, 11:16:03 AM

You may have better luck fully purging the keg with sanitzer first by fully filling, then pushing it out. Then pop the bail and add your dry hops.
Then you could attach your line from your fermenter to purge out any introduced O2 from adding the dry hops. May get you a bit closer to lower levels desired.

I’m about to try this method but one thing that worries me is that there will still be sanitizer left at the bottom of the keg that the hops would be in contact with for a few days while the fermenter is connected to the keg. Is that a cause for concern?
Title: Re: Dry hopping in the keg questions ?
Post by: goose on August 24, 2018, 12:40:20 PM

You may have better luck fully purging the keg with sanitzer first by fully filling, then pushing it out. Then pop the bail and add your dry hops.
Then you could attach your line from your fermenter to purge out any introduced O2 from adding the dry hops. May get you a bit closer to lower levels desired.

I’m about to try this method but one thing that worries me is that there will still be sanitizer left at the bottom of the keg that the hops would be in contact with for a few days while the fermenter is connected to the keg. Is that a cause for concern?

I always use this method and once the sanitizer if out of the keg, I rock the keg back and forth vigorously to shoot any sanitizer left in the bottom out through the beer dip tube.  I gets 99.9% of the sanitizer out of the keg.  The 0.1% that is left is not going to effect the taste of the beer.
Title: Re: Dry hopping in the keg questions ?
Post by: Robert on August 24, 2018, 01:02:54 PM
I use a method I learned here on the forum.  My gas dip tubes are cut so they are flush with the inside surcace of the keg, or actually recessed a bit.  Blow all the sanitizer you can out the liquid side, then pressurize and invert the keg and let the remainder drain to the to the top for a minute.  With the gas post positioned to be the very lowest point,  pop on a gas QD and blow every last drop of sanitizer out!  (Especially helpful if you've trimmed your liquid tubes to avoid picking up sediment.)
Title: Re: Dry hopping in the keg questions ?
Post by: hmbrewing on August 24, 2018, 05:35:53 PM
All right. That's it! I have my pale ale fermenting out right now that I normally dry hop for 3 - 4 days before I keg. But there's been enough positive feedback on this thread to give me the confidence to add the dry hops straight to my serving keg without worry! Once kegged, it normally doesn't last me longer than 3 months but I've always been bummed out when the dry hop aroma dies out completely around the 4 week mark. So next week - straight into the serve keg for the dry hops!
Title: Re: Dry hopping in the keg questions ?
Post by: chrisv on August 26, 2018, 01:31:09 PM
I use a method I learned here on the forum.  My gas dip tubes are cut so they are flush with the inside surcace of the keg, or actually recessed a bit.  Blow all the sanitizer you can out the liquid side, then pressurize and invert the keg and let the remainder drain to the to the top for a minute.  With the gas post positioned to be the very lowest point,  pop on a gas QD and blow every last drop of sanitizer out!  (Especially helpful if you've trimmed your liquid tubes to avoid picking up sediment.)

That’s brilliant - thanks!
Title: Re: Dry hopping in the keg questions ?
Post by: Robert on August 26, 2018, 02:05:31 PM
I use a method I learned here on the forum.  My gas dip tubes are cut so they are flush with the inside surcace of the keg, or actually recessed a bit.  Blow all the sanitizer you can out the liquid side, then pressurize and invert the keg and let the remainder drain to the to the top for a minute.  With the gas post positioned to be the very lowest point,  pop on a gas QD and blow every last drop of sanitizer out!  (Especially helpful if you've trimmed your liquid tubes to avoid picking up sediment.)

That’s brilliant - thanks!
Yeah it is brilliant, and so "why-didnt-I-think-of-that?"  If I knew who originated it, I'd thank them profusely.
Title: Re: Dry hopping in the keg questions ?
Post by: klickitat jim on August 26, 2018, 10:35:47 PM
But then how do you get the hops in there without letting any oxygen in?
Title: Re: Dry hopping in the keg questions ?
Post by: Robert on August 26, 2018, 10:56:37 PM
But then how do you get the hops in there without letting any oxygen in?
I think there are two issues here: 1) what's the best way to sani-purge and leave no sani in the keg? See immediately above.  2) what you just said.  To which there's no perfect solution, but at least you won't have sani in there too.  Here are two approaches I have, first one somebody mentioned before.  a)  Open the purged keg, pop the hops in, close up fast, and do a few purge cycles through the liquid side, then closed-transfer the beer onto the hops in the keg.  You've done your best.  b)  same as (a), but toss in a small amount of sulfite (~10ppm) with the hops to scavenge O2.  If you're really paranoid.  (Which I sometimes am.  ;)  )
Title: Re: Dry hopping in the keg questions ?
Post by: klickitat jim on August 27, 2018, 01:36:03 AM
I think a person needs to make decisions about what is important. So if crazy high hop aroma is number 1 on the list then quit worrying so much about O2 and plan to drink the beer fast. If you can't get through a keg before oxidation starts destroying it, then maybe you need to consider getting dry hop aroma some other way than the keg.

I'm lucky. I get all the hop aroma I personally need from whirlpool. And through closed transfer to a properly purged keg, and keeping that keg always cold, I'm able to preserve that aroma quite a while.

Think a hop aroma version of the tortoise and the hare
Title: Re: Dry hopping in the keg questions ?
Post by: Robert on August 27, 2018, 01:57:18 AM
^^^^
I prefer dry hopping (when I do it) in the fermenter with a little yeast activity left to scour the O2.  But I totally agree, if you want to dry hop in the keg, you probably are going for extreme freshness, so drink quickly and enjoy the unique moment.  When you think dry hopping (ok, when I think dry hopping) what comes to mind is British cask beer that goes in 2 or 3 days at the pub.  The candle that burns the brightest burns the fastest.  That said, this thread is about those who want to keg hop and may take some time to consume the beer.  I'd forgotten, went back and re-read from the top, some interesting conversation.  Why I hang around.
Title: Re: Dry hopping in the keg questions ?
Post by: blatz on August 27, 2018, 01:35:48 PM
But then how do you get the hops in there without letting any oxygen in?

not perfect but i hook up co2 to the liquid side at about 4 psi and gas while i dump hops into the bottom of the sani purged keg (with sure screen).  close back up, and rack beer in through liquid line.  let sit 3-5 days then cold crash under pressure for 2 days and jump to a new keg.

I'm currently drinking an IPA that is about 5-6 months old, dynamite hop aroma and minimal to no oxidation notes (i.e. i don't feel its oxidized at all). i have another (Different recipe) IPA on tap that is about 2 months old - also excellent, same intensity.

i personally like the aromas doing this versus in the fermentor.  Also, i like that the hops in this method are free balling within the entire keg versus a bag or SS canister - with the amount of hops i use, those vehicles were always crammed and often the middle of the hops was still dry. 
Title: Re: Dry hopping in the keg questions ?
Post by: chrisv on August 28, 2018, 02:50:13 AM
But then how do you get the hops in there without letting any oxygen in?

I also whirlpool but the hop aroma is just not enough for me, which is why I'm looking for different ways.  :) . I've also had oxidized beer within a couple of weeks of kegging.

Here's what I'll try for my next batch.  Once fermentation starts and krausen starts to build up I'll purge the keg as described by Robert, open the keg up, toss the dry hops in and seal the keg.  Then I'll connect my 7G Fermonster from the blow off tube to the beer line in, and hook up the gas disconnect to a jar of sanitizer.  Put everything in the temp controlled chest freezer and let it go until fermentation slows down.  Once heavy fermentation is done connect the fermonster back to the jar of sanitizer (or an airlock) and give it a few days for the yeast to clean up.  Then CO2 transfer to the dry hopped keg for a few days until I transfer to the serving keg and chill.
Title: Re: Dry hopping in the keg questions ?
Post by: klickitat jim on August 28, 2018, 03:05:32 AM
But then how do you get the hops in there without letting any oxygen in?

I also whirlpool but the hop aroma is just not enough for me, which is why I'm looking for different ways.  :) . I've also had oxidized beer within a couple of weeks of kegging.

Here's what I'll try for my next batch.  Once fermentation starts and krausen starts to build up I'll purge the keg as described by Robert, open the keg up, toss the dry hops in and seal the keg.  Then I'll connect my 7G Fermonster from the blow off tube to the beer line in, and hook up the gas disconnect to a jar of sanitizer.  Put everything in the temp controlled chest freezer and let it go until fermentation slows down.  Once heavy fermentation is done connect the fermonster back to the jar of sanitizer (or an airlock) and give it a few days for the yeast to clean up.  Then CO2 transfer to the dry hopped keg for a few days until I transfer to the serving keg and chill.
I wonder about a CO2 purged Randall between the primary and the keg, with a slow closed tesnsfer.
Title: Re: Dry hopping in the keg questions ?
Post by: ynotbrusum on August 28, 2018, 11:38:00 AM
But then how do you get the hops in there without letting any oxygen in?

I also whirlpool but the hop aroma is just not enough for me, which is why I'm looking for different ways.  :) . I've also had oxidized beer within a couple of weeks of kegging.

Here's what I'll try for my next batch.  Once fermentation starts and krausen starts to build up I'll purge the keg as described by Robert, open the keg up, toss the dry hops in and seal the keg.  Then I'll connect my 7G Fermonster from the blow off tube to the beer line in, and hook up the gas disconnect to a jar of sanitizer.  Put everything in the temp controlled chest freezer and let it go until fermentation slows down.  Once heavy fermentation is done connect the fermonster back to the jar of sanitizer (or an airlock) and give it a few days for the yeast to clean up.  Then CO2 transfer to the dry hopped keg for a few days until I transfer to the serving keg and chill.
I wonder about a CO2 purged Randall between the primary and the keg, with a slow closed tesnsfer.

Are you guys purging the receiving keg at the start or just suggesting those steps noted?  I think either approach would work, but could be enhanced or helped by starting with a purged keg to keep the O2 goblins at bay (at least a tiny bit better).
Title: Re: Dry hopping in the keg questions ?
Post by: Robert on August 28, 2018, 12:16:36 PM
I wonder about a CO2 purged Randall between the primary and the keg, with a slow closed tesnsfer.
Hmm.  I'm intrigued.  How slow would that transfer have to be?  Anybody have actual experience?  (Fermenter ==> dry hop in purged keg ==> jump to another keg is essentially this idea with a reallllly slooowww transfer, right?)
Title: Re: Dry hopping in the keg questions ?
Post by: blatz on August 28, 2018, 12:23:56 PM
I wonder about a CO2 purged Randall between the primary and the keg, with a slow closed tesnsfer.
Hmm.  I'm intrigued.  How slow would that transfer have to be?  Anybody have actual experience?  (Fermenter ==> dry hop in purged keg ==> jump to another keg is essentially this idea with a reallllly slooowww transfer, right?)


See my post above


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Title: Re: Dry hopping in the keg questions ?
Post by: Robert on August 28, 2018, 12:56:53 PM
I wonder about a CO2 purged Randall between the primary and the keg, with a slow closed tesnsfer.
Hmm.  I'm intrigued.  How slow would that transfer have to be?  Anybody have actual experience?  (Fermenter ==> dry hop in purged keg ==> jump to another keg is essentially this idea with a reallllly slooowww transfer, right?)


See my post above


Sent from my iPhone using Tapatalk
I'm just wondering if there's a reasonable flow rate that would get any effect from using a Hop Rocket as a Randallizer in the transfer.  Like taking an hour to jump 5 gal, or something on that order.  (My next variation to try is crashing in fermenter, then dry hopping in my cold-conditioning keg for a few weeks,  before filtering.  Because that's a dry hopping variant I haven't tried, but standard procedure for treatment of the beer otherwise.  I'll just be moving the dry hop to post-fermentation.  Like the Blatz Method, but cold and slow.)
Title: Re: Dry hopping in the keg questions ?
Post by: blatz on August 28, 2018, 01:01:18 PM
I wonder about a CO2 purged Randall between the primary and the keg, with a slow closed tesnsfer.
Hmm.  I'm intrigued.  How slow would that transfer have to be?  Anybody have actual experience?  (Fermenter ==> dry hop in purged keg ==> jump to another keg is essentially this idea with a reallllly slooowww transfer, right?)


See my post above


Sent from my iPhone using Tapatalk
I'm just wondering if there's a reasonable flow rate that would get any effect from using a Hop Rocket as a Randallizer in the transfer.  Like taking an hour to jump 5 gal, or something on that order.  (My next variation to try is crashing in fermenter, then dry hopping in my cold-conditioning keg for a few weeks,  before filtering.  Because that's a dry hopping variant I haven't tried, but standard procedure for treatment of the beer otherwise.  I'll just be moving the dry hop to post-fermentation.  Like the Blatz Method, but cold and slow.)

Gotcha.  My transfers take about 15 min currently.  I can’t imagine you’d extract enough with just an hour passage/contact time (ie without letting sit 5 days or whatever) would give you enough aroma to last through the life of the keg but I’d be interested in hearing others trials.






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Title: Re: Dry hopping in the keg questions ?
Post by: hopfenundmalz on August 28, 2018, 01:39:45 PM
But then how do you get the hops in there without letting any oxygen in?

I also whirlpool but the hop aroma is just not enough for me, which is why I'm looking for different ways.  :) . I've also had oxidized beer within a couple of weeks of kegging.

Here's what I'll try for my next batch.  Once fermentation starts and krausen starts to build up I'll purge the keg as described by Robert, open the keg up, toss the dry hops in and seal the keg.  Then I'll connect my 7G Fermonster from the blow off tube to the beer line in, and hook up the gas disconnect to a jar of sanitizer.  Put everything in the temp controlled chest freezer and let it go until fermentation slows down.  Once heavy fermentation is done connect the fermonster back to the jar of sanitizer (or an airlock) and give it a few days for the yeast to clean up.  Then CO2 transfer to the dry hopped keg for a few days until I transfer to the serving keg and chill.
I wonder about a CO2 purged Randall between the primary and the keg, with a slow closed tesnsfer.
I have used a hop rocket to do that, excellent results.

15-20 minutes to transfer. You can the go back to the original keg by swapping the fittings. Pour a sample, evaluate, repeat. I think I did it 4 times.