AG Single Malt Question

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AG Single Malt Question

Postby Mormash » Mon Dec 04, 2017 12:59 pm

So I'm thinking of doing a 100% heavy peated single malt wash and as I want the filthiest smokiness possible I would like to ferment on the grain.
My grain bill will be 12.5kg Baird's Heavy Peated with 38l strike water.
I would like to end up with 40l in the boiler and as there will be 12.5kg of grain in the fermenter does that mean I need to fill the fermenter up to 52.5l to take into account for grain absobtion?

My keggles are 50l and I can only really mash to about 38l in total before things get too messy so with 12.5 kg of grain remaining that means that once I chuck it in the fermenter I can only rack off 25.5l into my still boiler.

If i wanted to aim for an OG of 1.072 would I mash for longer until my OG is sky high and then dilute it down with water to get a total of 52l in my fermenter? If so how can I work out what gravity to aim for before topping up to 52.5l?
Should I reduce some strike water to reach a higher gravity and then dilute it?
What's are my options guys?
Mormash
 
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Re: AG Single Malt Question

Postby pat_00 » Mon Dec 04, 2017 2:24 pm

Hi,

Are you using any brewing software? (beersmith or brewmate etc)

They have tools for calculating dilution amounts.
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Re: AG Single Malt Question

Postby bluc » Mon Dec 04, 2017 2:29 pm

Yes if fermenting on the grain just dilute at the end with water, since you wont be sparging..heres a calculator that may help
https://www.brewersfriend.com/dilution-and-boiloff-gravity-calculator/
bluc
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Re: AG Single Malt Question

Postby orcy » Mon Dec 04, 2017 6:08 pm

I honestly don't understand why you would ferment on the grain. Are you worried you can't mash and lauter properly?
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Re: AG Single Malt Question

Postby Mormash » Thu Dec 07, 2017 10:54 am

bluc wrote:Yes if fermenting on the grain just dilute at the end with water, since you wont be sparging..heres a calculator that may help
https://www.brewersfriend.com/dilution-and-boiloff-gravity-calculator/


Thanks for the calculator, bluc! I ha dnt come across that one and it's exactly what I needed. :handgestures-thumbupleft:
Mormash
 
Posts: 58
Joined: Fri Sep 30, 2016 10:06 am
Location: Country Victoria
equipment: 4" Plated Column Still with 5 bubble tee's and gin caddy
50l boiler
3 vessel herms brewing system
5 x 60l fermenters

Re: AG Single Malt Question

Postby Mormash » Thu Dec 07, 2017 10:56 am

pat_00 wrote:Hi,

Are you using any brewing software? (beersmith or brewmate etc)

They have tools for calculating dilution amounts.


I downloaded the paid version of beersmith some time ago and I couldn't make any sense of it. I finally worked out how to drive brewers friend since you post so thank you.
Mormash
 
Posts: 58
Joined: Fri Sep 30, 2016 10:06 am
Location: Country Victoria
equipment: 4" Plated Column Still with 5 bubble tee's and gin caddy
50l boiler
3 vessel herms brewing system
5 x 60l fermenters

Re: AG Single Malt Question

Postby Mormash » Thu Dec 07, 2017 10:58 am

orcy wrote:I honestly don't understand why you would ferment on the grain. Are you worried you can't mash and lauter properly?


That's exactly what I was concerned about. The last mash was my first attempt in my system and it was a total flop but at least I now know where I went wrong.
Mormash
 
Posts: 58
Joined: Fri Sep 30, 2016 10:06 am
Location: Country Victoria
equipment: 4" Plated Column Still with 5 bubble tee's and gin caddy
50l boiler
3 vessel herms brewing system
5 x 60l fermenters

Re: AG Single Malt Question

Postby bluc » Thu Dec 07, 2017 12:00 pm

My advice is keep trying you will get there. Fermenting on grain doesnt nessacarly mean more yield more so it changes the flavour. Worst case you can always makd a sugarhead from the failed attempts. What is your mashing setup.. :-B
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Re: AG Single Malt Question

Postby Mormash » Mon Dec 11, 2017 10:05 am

bluc wrote:My advice is keep trying you will get there. Fermenting on grain doesnt nessacarly mean more yield more so it changes the flavour. Worst case you can always makd a sugarhead from the failed attempts. What is your mashing setup.. :-B


I've recently bought a secondhand 3 vessel herms set up using 3 50l kegs. Not sure how I can manage getting a 40l wash with a gravity of around 1.072-1.080 after I sparge, though. Hopefully it's capable of it otherwise I might need to get a bigger tun.
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equipment: 4" Plated Column Still with 5 bubble tee's and gin caddy
50l boiler
3 vessel herms brewing system
5 x 60l fermenters

Re: AG Single Malt Question

Postby TasSpirits » Mon Dec 11, 2017 10:45 am

Why do you want such a high SG?
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Re: AG Single Malt Question

Postby Mormash » Mon Dec 11, 2017 10:58 am

TasSpirits wrote:Why do you want such a high SG?


I've been reading that a lot of guys aim for a gravity around that area. What would you suggest I should aim for?
Mormash
 
Posts: 58
Joined: Fri Sep 30, 2016 10:06 am
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equipment: 4" Plated Column Still with 5 bubble tee's and gin caddy
50l boiler
3 vessel herms brewing system
5 x 60l fermenters

Re: AG Single Malt Question

Postby TasSpirits » Mon Dec 11, 2017 11:07 am

Mormash wrote:
TasSpirits wrote:Why do you want such a high SG?


I've been reading that a lot of guys aim for a gravity around that area. What would you suggest I should aim for?


You want around 1.065 after sparging at most IMO, quality over quantity. :handgestures-thumbupleft:
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Re: AG Single Malt Question

Postby Mormash » Mon Dec 11, 2017 12:11 pm

TasSpirits wrote:
Mormash wrote:
TasSpirits wrote:Why do you want such a high SG?


I've been reading that a lot of guys aim for a gravity around that area. What would you suggest I should aim for?


You want around 1.065 after sparging at most IMO, quality over quantity. :handgestures-thumbupleft:


Ok ill aim for that and see how it goes. Is it possible to achieve that gravity in a 40l wash using a beer kegs without boiling the wort?
Mormash
 
Posts: 58
Joined: Fri Sep 30, 2016 10:06 am
Location: Country Victoria
equipment: 4" Plated Column Still with 5 bubble tee's and gin caddy
50l boiler
3 vessel herms brewing system
5 x 60l fermenters

Re: AG Single Malt Question

Postby markus » Mon Dec 11, 2017 6:44 pm

You want around 1.065 after sparging at most IMO, quality over quantity. :handgestures-thumbupleft:[/quote]
TasSpirits wrote:
Mormash wrote:
TasSpirits wrote:Why do you want such a high SG?


I've been reading that a lot of guys aim for a gravity around that area. What would you suggest I should aim for?


You want around 1.065 after sparging at most IMO, quality over quantity. :handgestures-thumbupleft:


:text-+1:
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