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Old 08-28-2011, 04:29 PM   #1
guitar510
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Default Not quite Imperial Stout aging question

I brewed an Imperial Stout yesterday and the OG ended up quite a bit lower than I expected. This was mainly because my final volume was 6 gal instead of 5 gal. I thought I would lose more water during the boil. I think from now on I need to plan on losing 0.5-0.75 gal during the boil and no more.

So instead of 1.088, I ended up at 1.072. This falls slightly out of the RIP range of 1.075-1.115.

My initial plan was to transfer to secondary after about 2 weeks or 1 month and then let it sit in the secondary for at least 6 months before bottling. Do you still think this amount of aging is necessary?

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Old 08-28-2011, 07:07 PM   #2
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I would probably leave it in primary for the 2-4 weeks like you said. If you can drop the yeast enough in primary, though, you should be able to just secondary in bottles. Personally I doubt you'd actually need 6 months with a 1.072 beer (or a 1.088 for that matter, as long as you had a good fermentation (pitching rate was good/etc)). I'd say you need to age it until it tastes good. You'll have an idea when you taste it after 2-4 weeks how long you need to age it.

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Old 08-29-2011, 03:28 AM   #3
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Well my airlock was borderline clogged, so I rushed to Home Depot to get 1 in. hoseline for a blowoff tube. When I pulled the stopper - SPEWWWW!!! So, I guess my yeast starter was healthy. Never seen this aggressive of a fermentation. I think from now on I'll use the blowoff on the primary and airlock on the secondary.

Problem is if I bottle it...I'll drink it.

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Old 08-29-2011, 08:32 AM   #4
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Out of curiosity did you use White Labs Irish Ale yeast? First time I made a stout with that strain the same basic thing happened....this strain has been incredibly aggressive for me.

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Old 08-29-2011, 01:58 PM   #5
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Nope. Wyeast 1728 Scottish Ale.

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Old 08-29-2011, 04:05 PM   #6
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In the future, if you know you are going to have more than the desired final volume, and your OG is going to suffer as a result, just boil longer. Longer boil = more boiloff = lower volume = higher OG.

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