Imperial Stouts are a mystery in the homebrew world (and obviously somewhat in the pro/craft arena as well). You can find recipes for any other styles for days.. with awards and write ups as to why they taste the way they do.. not so much for imperial stouts.
If you want a thick/syrupy RIS - you have to finish above 1.030 at a minimum. I recently did a side by side with a Huna clone and the real thing (the bottle you sent, thanks again) and the clone was WAYY thinner. The body was easily the biggest difference. The clone finished at 1.028.
My advice would be to use Wyeast 1968/WLP002 and aim for 1.115 SG or so. Hopefully that would finish around 1.040 or so which I think is about the finishing gravity you really want. That ESB strain is far away the best english yeast around in my opinion. Ive tried a couple others and havent been a fan.
FWIW - BCBS finishes at 1.045. Think about how syrupy/thick that beer is to help dial in what you want in your beer.
|
-
01-19-2015, 06:24 AM #271
- Join Date: Sep 2007
- Location: BMBC TacOPs center, Uganda
- Posts: 5,726
- Rep Power: 136296
bmbc
-
01-19-2015, 06:49 AM #272
Jamm!n totally nailed a lot of what I was going to say.
A super highly attenuating yeast is going to bring that FG down below your desired end-point IMO, basically it's too efficient at converting all those sugars into alcohol. A less effecient, or lower attenuating yeast will leave you with more residual sugars which is what you want for the body and consistency you're looking for. The double edge sword there is of course it'll be more difficult to hit your target ABV.
Grain bill will obviously come in to play, especially because you're probably looking at 25+ lbs of grain for a 5gal batch. 2hr boil will help caramelize some of those sugars, but I've also played around with concentrating wort on a smaller level - pull off 1.5gal and cook it down separately at a raging boil and add it back in to your main boil pot at flash-out.
Just spit-balling here but now you've made me want to try my hand at this as well... I assume you're looking to stay away from adjuncts on this one?
What you're struggling with is a problem that most commercial brewers who have been in the game for YEARS still struggle with. If it were as easy as just pitching the right yeast at a specific SG, we'd all be making KBBS in our garagesEat Less, Exercise More, Repeat Forever
-
-
01-19-2015, 07:06 AM #273
www.rif.org
I never said that. I said that one beer tastes like if you blended it w/ simtra and notorious, Norman.Official Supp. Misc Beer Policeman
Fancy a hook to your gabber m8?
-
01-19-2015, 08:03 AM #274
- Join Date: Apr 2007
- Location: Washington, United States
- Posts: 19,260
- Rep Power: 97779
Yeah... good points on the residuals. I think the last time we tried a big RIS we were at 1.13x and it was just too much. Our FG stalled out at 1.060, same issue as our bwine that was a SG of 1.144.
Plus at gravity that high, you have all these issues with osmotic pressure and the yeast cell walls. That, and once you go above 10% ABV-ish I believe the English strains can't hang with the toxicity and just stop.
1.060 is just too damn high. It tastes like melted candy bars and fusel alcohols.
I could probably just create a recipe, aim for 1.110 or under with the grain bill, and plan on a 1.040 FG... but that's like 63% attenuation or so? (1.110 - 1.040) / .110 = .63 x 100 would be 63% ?
unless I'm doing that wrong. Math's not my strong suit.
But it seems like that's within the range for WLP002 (60-70%)
I think our gravity has just been too high. Plus gravity increases with that extended boil, right? Is there a ballpark on how much, or a formula to account for that? Does Beersmith automatically adjust?Common Sense Crew
Living Happily is Easy Crew
Do Something That Matters Crew
There Are More Important Things in Life Than Women Crew
"My brother is an Alpha male in real life and virtually all of his friends are Alpha males." - zionosis
-
01-19-2015, 08:12 AM #275
Longer boil will definitely raise your gravity because as the water evaporates the sugar concentration in the wort will increase. Brewer's Friend has a calculator for estimating pre-boil and starting gravity readings based off your volume going into the boil and total time. As for the yeast, your math looks right to me, but expected attenuation and actual attenuation can vary hugely based off of conditions. Do you have a fermentation vessel that you use for temp control? I've had to re-invigorate yeast before (stirring without aerating) and I've also pitched a second starter into secondary after racking off the floculated yeast from primary.
Eat Less, Exercise More, Repeat Forever
-
01-19-2015, 08:17 AM #276
-
-
01-19-2015, 08:36 AM #277
-
01-19-2015, 08:37 AM #278
-
01-19-2015, 08:41 AM #279
-
01-19-2015, 08:42 AM #280
-
-
01-19-2015, 09:04 AM #281
- Join Date: Apr 2007
- Location: Washington, United States
- Posts: 19,260
- Rep Power: 97779
Yeah, we have two fermentation chambers that have digital temp control.
With a big beer, I usually aim for a couple degrees just below what the optimum temp says on the vial. Let it go apesht for a couple days, and then bump it up a couple degrees.
Hmmm... I wonder how they pull that off then. Mine always shts out around 10-11% ABV.
I think another part of the equation is staying on top of that fermentation.
Our set up is at my brewing partner's house, so usually we pitch, and leave it be. Lately I've been doing the "couple degrees low, then bump it up" thing, but I just text him and remind him to do it.
Ideally, if I had it in my place, I'd be monitoring it daily...Common Sense Crew
Living Happily is Easy Crew
Do Something That Matters Crew
There Are More Important Things in Life Than Women Crew
"My brother is an Alpha male in real life and virtually all of his friends are Alpha males." - zionosis
-
01-19-2015, 09:25 AM #282
The guy I brew with is building a Brewer's Pi to do pretty much that - start low then gradually increase temp, then finally cold crash. He's much more technically savvy than me...
Edit: Based off of this: http://www.brewpi.com/Eat Less, Exercise More, Repeat Forever
-
01-19-2015, 06:20 PM #283
-
01-19-2015, 06:44 PM #284
-
-
01-19-2015, 07:48 PM #285
-
01-19-2015, 07:50 PM #286
-
01-19-2015, 07:58 PM #287
-
01-19-2015, 10:56 PM #288
-
-
01-20-2015, 07:23 AM #289
- Join Date: Mar 2009
- Location: Tempe, Arizona, United States
- Age: 39
- Posts: 4,574
- Rep Power: 11810
the vanilla rye hype train is still taking passengers...some dinktown bottle shop about 3 hour from here somehow landed a 6th of vr last weekend and were filling 32ozers with no limit...some of the beerbros in our tasting group went up there and geez the trades they landed...2:2 veritas 13 14, 1:1 statement reserve...i traded mine for casey black amber italian plum + casey east bank + casey saison then i added a beetus tuesday for ac golden kriek and peche...ive had cherry fruit stand i think and my god i want all the casey...cant wait to bathe in the sour goodness of the western colorado slopes
¯\_(ツ)_/¯
The music isn't even the most important part of the music
electronic music has taken off...... cause its the truth
lol STFU will.i.am u fukking ******* - Skilllzzz
-
01-20-2015, 07:24 AM #290
-
01-20-2015, 07:43 AM #291
-
01-20-2015, 07:56 AM #292
-
-
01-20-2015, 07:57 AM #293
-
01-20-2015, 07:59 AM #294
-
01-20-2015, 08:26 AM #295
-
01-20-2015, 10:12 AM #296
-
-
01-20-2015, 10:14 AM #297
-
01-20-2015, 10:49 AM #298
-
01-20-2015, 11:03 AM #299
-
01-20-2015, 11:12 AM #300
Bookmarks