2 stage irish mash question

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2 stage irish mash question

Postby Br00ksy » Wed Jun 16, 2021 6:47 pm

Hello there

Working with a 200L fermenter that I will be mashing in too. Aiming for 3L water per 1kg grain.
25kg gladfeilds distillers malt and 20kg unmalted feed barley so a 135L ish final volume for that 3L water to 1kg barley ratio.

Going to gelatinise the 20kg unmalted barley in 60L of boiling water in my 200L mash tun/fermenter, stir briskly with drill and let sit for an hour.

My question is this:
What temperature of my strike water will I need to hit a target of 65 degrees for the addition of my distillers malt (assuming grain temp of 20 - 22 degrees)?

Have been trying with brewers friend calculator but it just isn't made for an Irish whisky mash....
Last edited by Br00ksy on Wed Jun 16, 2021 6:47 pm, edited 1 time in total.
Br00ksy
 
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equipment: "Foresight" Mac 4 SSG 50lt Keg boiler 2x 2400W elements
T500 with a basic pot still head

Re: 2 stage irish mash question

Postby bluc » Wed Jun 16, 2021 7:05 pm

Screenshot_2021-06-16-19-02-27-60.jpg


Thats calculator I used to use. There are calculators to work out equipment loss also.
I found pouring hot water into mash tun/fermenter and stirring drops it fastest.. careful about heat loss especially when adding boiling water, pouring it into tun.
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Last edited by bluc on Wed Jun 16, 2021 7:06 pm, edited 1 time in total.
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Re: 2 stage irish mash question

Postby Br00ksy » Fri Jul 02, 2021 10:06 pm

For prosterity:
I ended up just chucking in in 2 lots (only have a 50L water kettle boiler i can easily emty from) of 40L of rolling boil water and mixing the unmalted cracked barley with a drill for 10 mins on each addition.

Added 40L of 70 degree water into the mash and milled my dsitillers grain into my mash tun mixing as i went.

Ended up with a grav at 1065 which i was very happy with considering the ram shackle approach.
Will be a while before i can get back to it and start the ardous process of filtering the grain off and stripping but itll be worth it :D
Br00ksy
 
Posts: 104
Joined: Sun Dec 22, 2019 10:36 am
Location: Airlie Beach
equipment: "Foresight" Mac 4 SSG 50lt Keg boiler 2x 2400W elements
T500 with a basic pot still head


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