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Old 10-10-2008, 09:43 PM   #1
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Default Liquor to grist ratio

I'm mashing in a converted 5 gallon cooler and a couple of my next brews require around 14 lbs of grain. I've only mashed 10-11.5 lbs so far with a 1.3 qt/lb ratio. To fit 14lbs of grain I'm going to need to lower my ratio to about 1.1 qt/lb and I'm wondering how this might affect my mash and my wort. The only thing I've found while reading up on this is that I might end up with a more fermentable wort. How much more fermentable might it be and is there anything else I should take into consideration?

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Old 10-10-2008, 10:21 PM   #2
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You will have a thick mash giving the enzymes easier access to the grains. Your gonna need a bigger sparge and i would sparge in smaller batches as Bobby_M does to help your efficiency... Look about half way down the page and he talks about multiple smaller sparges.
All Grain

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Old 10-10-2008, 10:26 PM   #3
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I go anywhere from 1:1 - 1:1.25 on mine. It's just a matter of adjusting your temps and giving it a longer sparge.

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Old 10-10-2008, 10:39 PM   #4
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Forgot to mention.. I'm a batch sparger and I already do 2 equal sparges. Does my sparge volume just need to be larger to make up for the lesser amount of water in my mash?

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Old 10-10-2008, 11:04 PM   #5
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keep sparging until your gravity drops below 1.010. You might need more than 2 times

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Old 10-11-2008, 02:16 AM   #6
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When your mashtun is really full it helps a lot to do a decoction mashout. This is just removing part of the liquid from the mash and heating to a boil and slowly mixing it back into the mash until you reach 168F to 170F. Beersmith will do this calculation for you if you choose to perform a decoction mashout. After you have the temperature at 170F you continue with draining and 2 equal sparges until you have collected the required preboil volume. Don't forget to recirculate between sparges.

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Old 10-11-2008, 02:29 AM   #7
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A thicker mash gives a more dextrinous (less fermentable) wort. I mash at 1 qt / lb grain, but I don't think I could fit 14 lbs grain into my 5g cooler, I have a false bottom which takes up some space.

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Old 10-13-2008, 07:00 AM   #8
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i have done 14# with 1qt/# and it can be done. i use a braid system though. completely full. did 2 batch sparges and added water to get to my 6 3/4 gal boil point.

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Old 10-13-2008, 07:55 AM   #9
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Someone else posted this: Green Bay Rackers--Mash Calculators

It says you can do 1:1 in 4.62 gallons, so even with your false bottom you would probably be ok. You may have to do a triple sparge.

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Old 10-13-2008, 02:26 PM   #10
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You will probably need to do more than two sparges. Not being able to stir much could cost you some efficiency.

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