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 1/29/2010 1:15 PM
 

I just measured the SG of my MLK schwarzbier (brewed at the MLK brew-in on 1/18/2010). It's at 1.017 from 1.055. Here's the recipe...

Recipe: RSF Schwarzbier
Brewer: Mark Rogerson
Style: Schwarzbier (Black Beer)
TYPE: All Grain

Recipe Specifications
--------------------------
Batch Size: 12.00 gal
OG: 1.055 SG
Estimated Color: 18.8 SRM
Estimated IBU: 27.1 IBU
Brewhouse Efficiency: 87.00 %
Boil Time: 60 Minutes

Ingredients:
------------
Amount Item Type % or IBU
16.50 lb Pilsner (2 Row) Ger (2.0 SRM) Grain 80.49 %
2.00 lb Vienna Malt (3.5 SRM) Grain 9.76 %
1.00 lb Wheat Malt, Ger (2.0 SRM) Grain 4.88 %
0.69 lb Carafa II (412.0 SRM) Grain 3.35 %
0.31 lb Black (Patent) Malt (500.0 SRM) Grain 1.52 %
2.00 oz Mt. Hood [5.00 %] (60 min) (First Wort HoHops 15.7 IBU
1.00 oz Hallertauer [4.50 %] (60 min) (First WortHops 7.2 IBU
1.00 oz Saaz [4.00 %] (15 min) Hops 3.2 IBU
1.00 oz Saaz [3.10 %] (5 min) Hops 1.0 IBU
1 Pkgs Bavarian Lager (Wyeast Labs #2206) Yeast-Lager

Mash:
------------
30 min @ 147
30 min @ 152
20 min @ 168


New Post
 1/29/2010 2:34 PM
 

Only 5.01%? So you're about in the middle of the attenuation for that beer 69%. Pretty good. Do you expect to keep going to the 73% that's stated on the WL website?


~Comrade in Arms~
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 1/29/2010 6:39 PM
 
 Modified By Comrade Mark  on 1/29/2010 5:42:45 PM

It'll probably drop a bit more as I do a diacetyl rest, but I won't sweat it if it doesn't. At 49°F, it was fermented at the low end of the range for that yeast, so far.


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 1/30/2010 11:09 AM
 

So how do you raise the temp during a diacetylrest? How do you test for the removal of diacety?


~Comrade in Arms~
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 1/30/2010 12:50 PM
 

Believe it or not, I raise the temp by turning up the thermostat on the refrigerator and letting nature take its course.

I do not test for the removal of diacetyl. I do test for the presence of it with my nose and tongue, but not until after I do a D-rest.

I do a D-rest on every lager I make because of the ridiculous amount of it that was in the first lager I made. Since then, no D-problem. I have no idea if it's always necessary, but I always do it.


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 2/14/2010 2:05 PM
 

I racked this beer to 2ndary today. The hydrometer sample tasted pretty good. I filled a one-liter bottle with some and it's under pressure with a Carbonator on it, so I'll break that out at the February meeting.

Some data from Beer Smith:

  • OG: 1.055
  • FG: 1.012
  • ABV: 5.6%
  • Apparent Attenuation: 77.3%
  • Calories/pint: 244
  • Calories/pint from alcohol: 152

New Post
 2/15/2010 11:47 AM
 

So do you know what day, or Specific Gravity mark you were at when you did the D-rest?


~Comrade in Arms~
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 2/15/2010 1:33 PM
 

Yes.


New Post
 2/15/2010 2:50 PM
 

AHAHAHAHAHAHAHAHA I was lookign for the details. Like how many days into fermenting did you raise it for the D-Rest? What was the grtavity at when you did the D-Rest? Spread the knowledge.


~Comrade in Arms~
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 2/15/2010 5:35 PM
 

Last weekend (the 6th, I think) I turned up the thermostat to 65°. I don't think it ever got up to that temp, but it definitely got warmer than the 49° where it fermented. I did not rouse the yeast. I didn't detect any D-word after I measured the SG yesterday morning so I went ahead and racked it and turned the thermostat down to 34°. The beer is already pretty dang clear. Kegging is planned for next weekend.


New Post
 3/6/2010 3:06 PM
 


New Post
 4/27/2010 2:00 AM
 

I am not at home right now, so I can't publish the stats on my Schwarzbier, but mine turned out pretty good if I do say so myself. It made it to the second round at the SS Pro-Am, so I guess I am not alone in thinking that it "doesn't suck". I have it on tap now in my office, but I am not sure if it will last until the June meeting...I doubt it.

Anyway, I wanted to chime in on the Diacetyl rest thing. I never do one anymore. As I am sure that most of you know, I do almost exclusively Lagers. I tried doing a D-rest in the beginning, along with the myth of starting your beer warm and then cooling it once the fermentation starts. The secret is...pitch really big and let the beer finish. If you are in a hurry, you may have to do a Diacetyl rest like the Big-3 have to because the have to maintain serious throughput...but I am not pushing commercial beer through my system. As long as you let it go on the big starter, and wait for three weeks or so in the primary, the yeast will take care of itself. I also wait until I have the better part of a minute in between bubbles from my 3-piece airlock before I consider racking.

I am not sure if this helps or hinders the conversation, but since we were on the subject, I thought that I would chime in.

Jonathan

Note - Since I am sitting in a hospital right this second, I am feeling mortal, so I must say "enjoy every beer like it was your last!!!" There is no excuse for drinking crap-beer!!!

New Post
 4/27/2010 2:10 AM
 

I just happened to think to mention that I am not very sensitive to Diacetyl as a beer judge, so there is a chance that my beers are oozing with the stuff...but I don't think so since I have had a WHOLE LOT of beer judges drink my beer and I am sure that one of them has a lower threshold than I do. Anyway...I just wanted to mention that. My Pilsner should be at the Pizza Party if anybody wants to test a very light beer for any Diacetyl...over...and over...and over again. Let me know.

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