[UnequivocalBrewing]

Hi - there is not a lot of information about hop extract utilization.  The best information I've found is that 1ml of hopshot will provide ~10 IBU in 5 gallons of 1.050 gravity wort for a 60 minute boil.  There is also this nice chart from Northern Brewer that adjusts for different gravities:

https://www.northernbrewer.com/documentation/hopshot.pdf

Does anyone know of a way to calculate the IBU for a 15 minute, 5-minute, or even a flame-out addition?

Thanks!

[Stevie]

Most I have used are around 61% aa. 1ml is a bit more than a gram, maybe 1.2. Just do the math from there.

Unless you are using the "variety specific" extracts, I wouldn't add it later than 30 minutes.

[UnequivocalBrewing]

I'm not sure I'm following the approach on the calculations.  Can you explain a little more?  Thanks

As for the "variety specific" I totally get it.  Most of the stuff available to homebrewers is just hopshot and sometimes you get the variety but it's whatever high AA hop they use.  I know YCH does the variety specific stuff with their resinate products.  Does anyone know where homebrewers can get their hands on this stuff?

[Stevie]

If you are using software, enter it as 1.2g/1ml at 61%

[erockrph]

I haven't used them yet, but here is where I got my varietal hop extracts:

http://www.farmhousebrewingsupply.com/ibu-injectors/

[HoosierBrew]

I haven't used them yet, but here is where I got my varietal hop extracts:

http://www.farmhousebrewingsupply.com/ibu-injectors/

Are these the ones you use for late or keg hopping, I assume?

[UnequivocalBrewing]

Thanks.  I got it now.  I didn't see the hopshot in Beersmith when I first saw it.  Now I've got it.

Do you know who is the manufacturer of these IBU injectors?

[Stevie]

He just added it in the 2.3 release. I had to use grams in the previous release.

[UnequivocalBrewing]

BSG is the supplier for these FarmHouse IBU Injectors...

[erockrph]

I haven't used them yet, but here is where I got my varietal hop extracts:

http://www.farmhousebrewingsupply.com/ibu-injectors/

Are these the ones you use for late or keg hopping, I assume?

Right. I've tried late hopping with the generic hop shot and got no significant hop flavor or aroma from it.

Sent from my XT1585 using Tapatalk

[HoosierBrew]

I haven't used them yet, but here is where I got my varietal hop extracts:

http://www.farmhousebrewingsupply.com/ibu-injectors/

Are these the ones you use for late or keg hopping, I assume?

Right. I've tried late hopping with the generic hop shot and got no significant hop flavor or aroma from it.

Cool. I'll be picking up a few varietals to test out. Thanks, Eric!

[The Beerery]

I haven't used them yet, but here is where I got my varietal hop extracts:

http://www.farmhousebrewingsupply.com/ibu-injectors/

Are these the ones you use for late or keg hopping, I assume?

Right. I've tried late hopping with the generic hop shot and got no significant hop flavor or aroma from it.

Sent from my XT1585 using Tapatalk

With my process and methods, I do get a noticeable aroma from the hop extract even when added at 60 minutes.
Just another data point.

[HoosierBrew]

I haven't used them yet, but here is where I got my varietal hop extracts:

http://www.farmhousebrewingsupply.com/ibu-injectors/

Are these the ones you use for late or keg hopping, I assume?

Right. I've tried late hopping with the generic hop shot and got no significant hop flavor or aroma from it.

Sent from my XT1585 using Tapatalk

With my process and methods, I do get a noticeable aroma from the hop extract even when added at 60 minutes.
Just another data point.

Good aromas, though? These are the ones you use?

[The Beerery]

I haven't used them yet, but here is where I got my varietal hop extracts:

http://www.farmhousebrewingsupply.com/ibu-injectors/

Are these the ones you use for late or keg hopping, I assume?

Right. I've tried late hopping with the generic hop shot and got no significant hop flavor or aroma from it.

Sent from my XT1585 using Tapatalk

With my process and methods, I do get a noticeable aroma from the hop extract even when added at 60 minutes.
Just another data point.

Good aromas, though? These are the ones you use?

I use a generic bittering one for most of my beers. My best descriptor is tastes like hops . No I don't know I add at 60 and there is a hint of floral character for me, its actually really nice and subtle, its great in styles that only call for a 60 minute bittering addition.

[Stevie]

That's good to know. I was going to use 5ml hop shots for some hoppy pilsners I have planned. Glad to hear they aren't to rough.