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Messages - redzim

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1
Yeast and Fermentation / Re: Re-using yeast
« on: March 28, 2014, 06:51:42 AM »
Is that everything that dumped from the cone or is that yeast rinsed out from the trub?

I stick a flask like that in the fridge, let it settle for a couple days, then pour off about 75% of the liquid that is on top of the compacted slurry. Then I "sloosh" that around (I think that's a technical brewing term, right?) to loosen the slurry, and measure whatever Mr Malty calc says for my beer's OG and the yeast's harvest date. It's worked great for a couple years. I think I may be over-pitching a hair, as some beers start fermenting in 4 or 6 hours after pitching, but it works for me.

2
All Grain Brewing / Re: troubleshoot my too-bitter North German Pils
« on: March 27, 2014, 01:20:08 PM »
Prima is around those stats - 44ibu/5.3% and while I love it, I could see it being described by some folks as harsh, too bitter etc. when described relative to say a bitburger, polestar, scrimshaw, etc.

I like my Pils hoppy, which is why I brew this one to get close to Jever (hands-down my fav Pils, both in Germany and when I can find it here)... it certainly blows Bitburger away with its hop level, but perhaps I just went overboard on everything a little (too long a mash, too many sulfates, a few too many hops) and it is all just adding up to more than I like....

I tried a little blending experiment this afternoon with canned Bitburger and at 25% Bit, it's passable, and at 50% Bit, it's fine.  I have a Helles ready in a few weeks and I may try a blend of that, although if the Helles is real good I won't want to use it up too quickly...

Thanks for all the suggestions and ideas.

3
All Grain Brewing / Re: troubleshoot my too-bitter North German Pils
« on: March 27, 2014, 01:13:36 PM »

But more likely, the bittering level is emphasizing the bitterness in the beer. 45+ IBUs in a 1.050 beer is a lot and could be a source for an imbalance. In addition, I see that you were emulating a Hockkurz mash schedule, but it seems that it was not very kurz (short). I'm afraid that the mash might have been made too fermentable and there may not be enough residual sweetness. Ultimately, there was a over an hour of mashing.

I got my timing for a Hochkurz from Kai's site, which shows a good 90 min maltose rest followed by 60min of protein.  I followed the various steps on this graph pretty closely.
http://braukaiser.com/wiki/index.php?title=Decoction_Mashing#Hochkurz_Double_Decoction

Quote
Only 2.8 IBUs of FWH contribution? I assume that was a teeny hop addition.



Yes, only 0.75oz for a 10 gal batch.

4
All Grain Brewing / Re: troubleshoot my too-bitter North German Pils
« on: March 27, 2014, 01:07:49 PM »
Is the FWH IBUs calculated as a 20 minute addition?

Lot of IBUs there.

Yes...

5
All Grain Brewing / Re: troubleshoot my too-bitter North German Pils
« on: March 27, 2014, 06:36:08 AM »
Hmmm, I don't think 30 extra minutes would make that much of a difference on the first wort hops. One thing I can think of is acidifying you sparge water. This sounds a bit like a tannin issue, not a hop issue. But I could be wrong there. You didn't mention what your water source is.

I did not acidify the sparge water because I built on a 100% distilled water based, and Martin says (in BrunWater and elsewhere) that acidifying sparge water is not necessary when using 100% RO or distilled.

Here's the exact water chemistry for this beer, according the BrunWater, in ppm:
Ca 35
Mg 5
Na 8
SO4 80
Cl 32
Bicarbs zero
RA -28

6
All Grain Brewing / troubleshoot my too-bitter North German Pils
« on: March 27, 2014, 05:37:06 AM »
Hey Guys,

Got a weird one here: just been tasting my latest Pils (based off Hopfenundmalz's recipe). It's been lagering 5 weeks in the keg at 33F.  It has been a great recipe for me until this batch... but this batch has a really really dry bitter finish that is not pleasant at all. It's not a good hoppy bitterness like an IPA, it's bone dry, very long lasting in the mouth, and quite frankly not good. I'm trying to figure out why. The only thing I can think of is that for this batch I left the FWH hops in for a little over an hour before the wort boiled... my previous batch (which was fantastic), I only left them in for 30 minutes. Will this make a huge difference? 

Or perhaps hop freshness? For this new batch I used a brand-new vac pack of hop pellets, for the previous batch I used up a pouch that had been opened maybe 6 months earlier, BUT I vacuum seal it after every use and store it in a commercial freezer at -15F so I am not sure how much the oils are degrading...

The other difference is that in this batch I used 3% acidulated malt to try to get a little lactic tang in the flavor, the mash pH was in the 5.3 range, but on my previous batch I used no acid malt and the pH was still 5.3...

Otherwise here are all the things that were pretty much identical between batches:
(for my "bad batch" I used all 4.0% Mittelfruh; for my previous batch I blended 4.5% Mittelfruh & 6.3% Tettnang... does the fact that I used a lot more hops matter, weight-wise, have anything to do with it, even if IBUs of each addition were identical??)

2.8 IBUs @ FWH
41 IBUs @ 60min
1.7 IBUs @ 10min
0.1 IBUs @ 1min

Hochkurz Double Decoction mash, dough in at 146F, hold 30 min, raise to 158F with decoction, hold 30 min, raise to 168F with decoction, hold 20 min, sparge out.  OG 1.050, FG 1.011.  Water used was pretty close to Yellow Bitter profile in Brun Water (+/- 10ppm or so on each mineral).

Any suggestions would be appreciated. I could even mail a bottle to someone who seriously wants to critique it. Send me a PM.

-red


7
Yeast and Fermentation / Re: Combined threads
« on: March 22, 2014, 08:26:16 AM »
Mr Malty calc will also let you adjust for how old your slurry is...

8
Equipment and Software / Re: very frustrated with my Barley Crusher
« on: March 18, 2014, 06:27:24 AM »
I've had this problem... I should lube mine up frequently but I also slide on a #13 o-ring to drive the passive roller. When the ring breaks this is an opportune time to clean the roller. Yes it has frustrated me but it has been my own fault for not keeping the BC clean of gummy flour considering it is a precision piece of equipment.

#13? isn't that a little small? it looks like the rollers have a diameter of 1.25"

9
Equipment and Software / Re: very frustrated with my Barley Crusher
« on: March 17, 2014, 05:55:31 PM »
So I'm now taking recommendations for a better mill. I have heard good things about Monsters.  Anyone tried the new Captain Crush from Northern Brewer yet?

10
Equipment and Software / very frustrated with my Barley Crusher
« on: March 17, 2014, 01:28:37 PM »
I have a Barley Crusher Malt Mill, bought it new in 2008.  For the last 5-6 months it's been jamming or "cavitating" about 10 times during every 20+ lbs batch of grain I mill. For those who don't know the mill, only one of the two rollers is driven (in my case by a cordless drill running around 300 RPMs) and the other is supposed to spin when the grain gets between the rollers. But it keeps stopping and you have to bang or shake the mill a lot to get it going again, and usually once per batch of grain I have to dump it out and clean it out.  I have it running at the factory gap setting.

Any suggestions on how to get this fixed? I blast it out religiously with high pressure compressed air after each use so it is externally clean.  Is there oiling or something to do internally? Or a way to make it not jam up?   Or is it time for a better mill of new & improved design?

-red

11
The Pub / postcards from all 50 states
« on: March 14, 2014, 05:14:38 AM »
Good Morning All,

Need to rally the homebrewing community for something totally non-brewing related...

My daughter's 6th grade class is trying to collect as many postcards as they can from all 50 states, obviously the more my daughter gets the better... so if there is anyone out there who could send a postcard to her, send me a direct email (address below) with your mailing address. She'll hand-write you a letter, and you can mail a postcard back to her.  Or if any of you has a child in grade school, she could address the letter to your child.

Being from the Northeast, any state outside New England and the whole NY-NJ-PA-OH-WV-MD-DE area has a lot more cachet... but really, she'll accept anything.

You can send your address to redzim at mailstack dot com

thanks very much
Red

12
All Grain Brewing / Re: lactic acid to acidify sparge water
« on: March 12, 2014, 10:56:47 AM »
As mentioned, adding minerals to the mash and hoping that you are mixing them in AND dissolving AND distributing those ions throughout the mash is a tall order. I'd say its very unlikely unless you are running a RIMS or HERMS and the flow will distribute the ions effectively.

Brewers are FAR better off adding minerals to the water and letting them dissolve BEFORE mixing that water with the grist. 

In the case of using water that has very low alkalinity...like distilled water, the need for acidification is reduced. pH is not really a problem. But alkalinity is. Water with a pH of 9 and alkalinity of nearly zero is much better to brew with than a water with pH of 5.5 and alkalinity of 200 ppm.

For my dough-in, I am dissolving all minerals in the strike water before adding grains. It's at sparge time where I am currently dissolving them in only a cup or so of water, and mixing that into the mash tun at the same time that I add strike water.

You're saying if I mix & dissolve the sparge minerals into the full volume of sparge water, and with whatever lactic acid I may need, that is better... and that if I check the pH of that liquid, it should match up to what Brun Water predicts.... right?

13
All Grain Brewing / lactic acid to acidify sparge water
« on: March 11, 2014, 12:04:08 PM »
This question is aimed at folks who use BrunWater, but possibly other people can chime in too...

I've been noticing that when I have a water built on partially-distilled water with a lot of additional salts/minerals in it, the suggested amount of lactic acid from BrunWater (Adjustment Summary tab, cell H25) does not seem to be enough to drop the pH of my sparge water to 5.5.  When however I used my own water with no added minerals (for other beers) the suggested amount of lactic acid drops the sparge pH as predicted by BrunWater. 

Here's my guess, but tell me if it's correct: is BrunWater somehow including the minerals I'm adding to the mash & sparge in its calculation of what the pH will be, and therefore how much lactic acid to add?  I stir in minerals at dough-in, and then when sparging, I also add them to the mash at the same time as the sparge water as it seems more accurate than dissolving them in my sparge water and then adding all that to the mash tun. So my pH reading is off because the minerals BrunWater is expecting are not present in the sparge water.  Is this a correct assumption? If so, do I need to change my procedure, or can I just relax, knowing that when the acidified sparge water hits the mash together with the minerals, the pH will all work out fine? Or do I need to start dissolving the sparge minerals directly in the sparge water with the lactic acid?

(FWIW I add lactic acid when the sparge water is less than 70F, as suggested by Martin, although I can't remember exactly where I first saw that)

thanks
red

14
All Grain Brewing / Re: Late Water Adjustment
« on: March 06, 2014, 02:08:36 PM »
I use a small syringe and pull ~0.2 mL. By the time I walk across the room it's cooled, and there's no concern over evaporation.

is this for mash pH or refractometer readings? I thought for a mash pH you would need to pull out an actual "mash sample" including grains, not just liquid... at least that is what I do... or is the pH of just liquid pulled from the tun good enough?

15
Ingredients / Re: Pellet Hops - Vacuum Sealed bag or jar?
« on: March 03, 2014, 06:55:05 AM »
My avocado tree is in full bloom right now.  It looks like a bumper crop this year.

#^#@!% Floridians  ;)....  the taps have been in our sugar maple trees for 3 weeks already but nothing's dripping as the temperature steadfastly refuses to rise above freezing for more than about 30 minutes a day... but there's still 2 feet of snow on the ground so when the thaw finally comes that should help with a good run...

(sorry... off topic but I'm particularly cold this morning!)

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