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Old 12-29-2008, 03:51 PM   #1
DontTreadOnMike
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Default Very high original gravity...again.

Hey folks. I'm Mike. I've been lurking around for a while and I decided to finally make an account.

It seems my problem is a common one around here. Yesterday my brother and I brewed our third batch of homebrew. This time we decided to go a little crazy (for us) so we made an Imperial Stout with a couple additions. We added an ounce of coffee to the steeping grains, and an ounce of unsweetened baking chocolate to the boil. We have no idea if that was too much or too little for 5 gallons of beer but I guess experimentation is what homebrewing is all about. Anyway our original gravity came out to be 1.101. I know that imperial stouts can have high readings but I thought that seemed a little high.

I've seen people on this forum figure out what the OG should be based on the recipe and I was wondering if someone could do it for me or give me a link where I could figure it out myself.

Here's the recipe we used...


11# coopers light malt extract


1/2# 60L crystal malt
1/2# roasted barley
1/2# chocolate malt
1/2# 20L crystal malt
1/4# black malt

2 oz galena (11.6%) 60 min.
2 oz fuggles 2 min

1 oz Sumatra blend coffee

1 oz unweetened baking chocolate

The instructions called for the grains to be steeped as 1.5 gallons of water was heated from room tempurature to 170. After we did that was when we had our inspiration so we changed out the grains for an ounce of coffee and steeped that for about 10 minutes at 170.

The chocolate went in with the malt extract.

If our OG is not accurate I think our mistake may have been to check it at a slightly higher tempurature than normal. We forgot to take the tempurature before measuring


Anyway, Thanks. I look forward to absorbing all of your helpful knowledge on this forum in the future

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Old 12-29-2008, 03:58 PM   #2
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That Coopers extract is liquid right? Plugging your recipe in to Beer Tools Pro, it says your og should be around 1.090. I don't think the temperature would have given you that much of a difference when taking your reading. It could also be that the wort was not fully mixed up when you took the reading. Or simply you got more sugars than what BTP thinks you should have gotten... Either way, I guess 10 points isn't that far off...

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Old 12-29-2008, 04:02 PM   #3
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Oh great! Thanks for the info.

Yep the extract was liquid. I'm a little concerned about wort explosions and bottle bombs. I've never brewed anything this heavy. What FG should I shoot for before I bottle?

EDIT: Maybe I got some extra sugar from the coffee. It was slightly flavored after all.

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Old 12-29-2008, 04:12 PM   #4
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You basically want to bottle when the hydrometer reading doesn't change from one day to the next. To be on the safe side I'd wait a week or two. That's a pretty big beer so you'll need time for it to mellow out anyway so don't rush it. When I brew something anywhere close to that big, I usually leave it in primary for at least 2-3 weeks and even sometimes just over a month. That'll also clear up the beer quite nicely, not that it's that important in a stout...

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Old 12-29-2008, 04:14 PM   #5
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In Beer Smith, I get a estimated OG of 1.098 and estimated FG of 1.025.

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Old 12-29-2008, 04:21 PM   #6
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Thanks guys!

Nurmey, that would put my ABV somewhere near 9.5% no?

I'm getting excited

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Old 12-29-2008, 04:39 PM   #7
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If all goes as expected your ABV should be 9.59%.

Make sure to take a couple aspirins and drink lots of water after a night of drinking these babies.

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Old 12-29-2008, 05:09 PM   #8
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Sounds really really really good to me.



I would give a beer this big at least a month in the primary, take a gravity sample, and wait three days to take a second gravity sample, bottling only if the two match.

Cheers

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Old 12-29-2008, 05:39 PM   #9
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Ah another stone drinker. They're a huge inspiration for me. Taking a tour of their brewery/bistro is what made me want to brew my own beer.



Thanks for the tip

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Old 12-29-2008, 06:15 PM   #10
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Quote:
Originally Posted by Saccharomyces View Post
...I would give a beer this big at least a month in the primary...
+1 on this...
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