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Home Brew Forums > Home Brewing Beer > General Techniques > Problem: Multi-Step Mashing w/ 5 Gal. Igloo MLT
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Old 05-12-2009, 10:14 PM   #1
cylered16
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Default Problem: Multi-Step Mashing w/ 5 Gal. Igloo MLT

Can someone please help me with a little problem I have?

I am attempting an All-Grain Pilsener with 12.5 lbs. of malt.

I used beersmith to calculate how much water I needed for a double infusion, light body mash profile.

Here is what beersmith told me I needed:

Protein Rest: add 11.25 qt. of water @ 144.5 for 130 Step temp.
Sacc.: add 10 qt. @ 189.5 for 150 step temp.
Mash out: add 10 qt. @ 211.4 for 168 step temp.

This is the problem I'm having...
I have a 5 gal. mash tun and it calls for 8.79 gallons of water.

What can I do besides buying a 10 gallon cooler?

Any useful suggestions would be gladly welcomed.

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Old 05-12-2009, 10:20 PM   #2
The Pol
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Decoction... other than that, get a 10 gallon cooler

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Old 05-12-2009, 10:21 PM   #3
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divide by 2

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Old 05-12-2009, 10:26 PM   #4
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Default Hopsoda's reply=amazing lol

Thanks that might actually work lol It will be thick as all hell and extraction may not be as amazing, but it just may do the trick.

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Old 05-12-2009, 10:39 PM   #5
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that's not quite what i meant but you could try that.
I would make a 2 half batches then mix them together , then boil and proceed as normal.

pol is a pro - so his advise is probably better than mine

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Old 05-12-2009, 11:05 PM   #6
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I've never done one, but will a decoction make the wort darker than it would be with just an infusion step?

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Old 05-12-2009, 11:31 PM   #7
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I don't think it will make it any darker, but it could make it a little stronger

here is a link for info on decoction .

Decoction Mashing

I have not used this method much so i cant say for sure.

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Old 05-12-2009, 11:45 PM   #8
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Quote:
Originally Posted by hopsoda View Post
that's not quite what i meant but you could try that.
I would make a 2 half batches then mix them together , then boil and proceed as normal.

pol is a pro - so his advise is probably better than mine :)
Hopsoda is a comedian, I AM NOT A PRO
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Old 05-13-2009, 12:24 AM   #9
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Quote:
Originally Posted by The Pol View Post
Hopsoda is a comedian, I AM NOT A PRO
Comedian? ok? Pol is an amateur , take his advice.
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Old 05-13-2009, 12:46 AM   #10
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I used the same mash schedule for my last batch.
After 45 min I started drawing off 2 quarts, boiling, and stirring back in.
Each batch raised the mash by about 5F until I got to 168 ish.
It isn't quite decoction, since the grain stays in the MLT.

I've done this twice now and both batches were 90% brewhouse efficiency.
I had been in the low to mid 80s with single step mashes.

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