ALL GRAIN - Imperial Stout

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ALL GRAIN - Imperial Stout

Postby robwalker » Mon Jan 11, 2016 21:38

Thought I'd challenge myself today and aim for a high gravity beer.

Malts are Pale, Choc, Roasted barley and Munich. Bittered to 75 ibus with Topaz and fermented with s-04.

Aimed for 1.094 but fell pretty short at 1.076 - I'll make some of this up with sugar.

After 3 weeks l'll rack this into Demi Johns onto different ingredients - elderberries, whisky soaked oak chips, whole coffee beans. A couple of weeks more and I'll bottle to age it considerably.
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Re: ALL GRAIN - Imperial Stout

Postby liamtmt7 » Mon Jan 11, 2016 22:58

Thats a black sample.

Like the idea of splitting and creating different flavours as well. What ABV % are you aiming for?

Also, is 1 packet of yeast enough?
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Re: ALL GRAIN - Imperial Stout

Postby graysalchemy » Mon Jan 11, 2016 23:00

If you are doing elderberry I would crush the elderberries and boil with a bit of water and add this to the fermenting beer. this is the best way as elderberries are better tasting once fermented.

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Re: ALL GRAIN - Imperial Stout

Postby robwalker » Mon Jan 11, 2016 23:13

I got a big bag of yeast so I'll pitch using mrmalty. Fermenting may be complicated Ali, but I'll boil them on your advice .
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Re: ALL GRAIN - Imperial Stout

Postby graysalchemy » Mon Jan 11, 2016 23:15

That will at least help.

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Re: ALL GRAIN - Imperial Stout

Postby robwalker » Mon Jan 11, 2016 23:17

Great. They should get a slow ferment in the secondary anyway.
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Re: ALL GRAIN - Imperial Stout

Postby Good Ed » Tue Jan 12, 2016 01:06

Nice colour, 1076 is not too shabby, I always find I really have to drop my efficiency a lot and use a lot more grain than I think to get to the OG of big beers, although 1094 is quite a target. You just have to be patient now.

Here's to the man who drinks strong ale,
and goes to bed quite mellow.
Lives as he ought to live,
and dies a jolly good fellow.
- Old English folk song
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Re: ALL GRAIN - Imperial Stout

Postby robwalker » Tue Jan 12, 2016 12:10

It actually settled at 1.080 (thermometer broke so can't correct) so had I hit 15L that would be about 1.084 which isn't bad at all really! Before trub losses etc of course. I think I'll leave it the way it is, the whisky version is having 200ml whisky added anyway :p
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Re: ALL GRAIN - Imperial Stout

Postby ferg » Wed Jan 13, 2016 19:45

Rob, what process did you follow to try to get to your OG?

Planning a RIS in the next few weeks and so have been reading up on high gravity brewing.
Seems there's a limit to the OG you can get when sparging (don't recall exactly what it is) and so to achieve higher OGs, you can either a) add adjuncts eg sugar b) boil for a long time to reduce or c) don't sparge and use more grain.
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Re: ALL GRAIN - Imperial Stout

Postby graysalchemy » Wed Jan 13, 2016 19:49

There is a fantastic article on BYO about brewing uber high og beers actually I think there are a couple. It's not impossible to get upto 19 - 20% home brewing without having to add sugar.

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Re: ALL GRAIN - Imperial Stout

Postby robwalker » Wed Jan 13, 2016 23:18

This was biab. I used about 7kg of grain in a 33L vessel and got pretty close (10 points away with an extra litre of wort in the end.) A very small quick sparge, 1.7L, just to make draining easier. Without a doubt you want to employ a mash out to liquify the sugars more. As graysalchemy says I think overshooting the grain bill is worthwhile. Don't break your thermometer and you'll be able to take a gravity reading during boiling to add sugar as necessary...
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Re: ALL GRAIN - Imperial Stout

Postby rlemkin » Wed Jan 13, 2016 23:27

Looks good. I managed to claw my way up to 1.090 for my pre-Christmas stout. High gravity BIAB brewing to me means a lot of squeezing and dunk sparging. Also used S-04 with cocoa powder in the boil and coffee at flameout. Instead of Munich I added Black, Amber and oats.

Currently debating coffee additions. I've read that the flavour can fade quite quickly, so I'll be either adding whole beans like you or adding cold-steeped coffee prior to bottling. Not sure what's the best approach to be honest.
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Re: ALL GRAIN - Imperial Stout

Postby robwalker » Wed Jan 13, 2016 23:35

They're all different I think. I reckon my beans will lose aroma but enough will remain, I won't mind if it goes plain anyway. I guess an espresso made up will only add flavour in the end
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Re: ALL GRAIN - Imperial Stout

Postby KevinS » Thu Jan 14, 2016 10:08

I've always heard that Alesmith's Speedway stout uses cold pressed coffee at bottling (or at least homebrew versions of it...). The rationale being that they can taste at this stage to judge if its too much or too little.

I think it was around a pint for a standard size batch. Mikkeller also use similar (although not cold pressed from memory, just a cafetiere) for Beer Geek Breakfast

Always wanted to experiment with this, but not got around to it yet!
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Re: ALL GRAIN - Imperial Stout

Postby robwalker » Mon Feb 01, 2016 20:19

Racked this one after 3 weeks in primary today. Admiral pellets on left, whisky oak in the middle, elderberry gunk on the right (boiled for a few mins then cooled and added.) Hit 1.021 so a measly 7.8%, or as graysalchemy would call it, a "southern dandy's session ale"
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Re: ALL GRAIN - Imperial Stout

Postby graysalchemy » Mon Feb 01, 2016 21:02

Yup that's a girls drink.

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Re: ALL GRAIN - Imperial Stout

Postby HTH1975 » Tue Feb 02, 2016 09:31

I know it's early, but I could happy try all three of those right now.

2016: 330L brewed (72 gallons, over 8 firkins)
2017: 105L brewed (need to update this figure)
Drinking: Landlord clone
Conditioning: ciders from 2016, hedgerow barrolo, 1914 Courage RIS (10%).
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Re: ALL GRAIN - Imperial Stout

Postby pittsy » Tue Feb 02, 2016 20:40

7.8% Rob ! I'd like to see you drink 5 of them in a sitting :D Sounds nice though , as a sipper :hat:
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Re: ALL GRAIN - Imperial Stout

Postby Rolfster » Tue Feb 02, 2016 22:32

graysalchemy wrote:Yup that's a girls drink.


I would put on a dress and wig to try these..... I'd even try to get some ribbons in my beard :whistle:
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Re: ALL GRAIN - Imperial Stout

Postby gregles » Tue Feb 02, 2016 22:56

I would have one with a wee umbrella on top and a cherry on a stick. If there's lippy on the glass then the Rolfster got there first :drunk:
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Re: ALL GRAIN - Imperial Stout

Postby Rolfster » Tue Feb 02, 2016 23:12

:rofl: :rofl: :rofl:
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