Author Topic: Converting All Grain Recipe's to Partial Mash  (Read 3990 times)

Offline James Lorden

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Converting All Grain Recipe's to Partial Mash
« on: September 22, 2011, 12:32:17 PM »
A friend of mine who recently started brewing partial mash has asked me to give him a few of my recipe's.  My recipe's are all-formulated for all-grain.  I am wondering if there is a rule of thumb as far as how much of your base grain would be replaced with extract when converting the recipe?

I guess theoritically you are limited by the amount of grain that you can stick in one of those large grain bags that most people use for partial mash.  On the lower extreme I guess you want to include enough base grain in the mash to make sure you have enough enzyme to convert any non-crystal specialty grains or adjuncts that you are using.

This quesion is probably a matter of personal preference, but I'd appreciate thoughts.
James Lorden
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Online denny

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Re: Converting All Grain Recipe's to Partial Mash
« Reply #1 on: September 22, 2011, 12:33:51 PM »
Mash as much grain as you can..all the specialties and as much base malt as you have room for.  Then use light DME to make up what you're missing.
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Offline Joe Sr.

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Re: Converting All Grain Recipe's to Partial Mash
« Reply #2 on: September 22, 2011, 01:50:36 PM »
http://www.homebrewersassociation.org/forum/index.php?topic=1084.0

This thread has a link to the PDF I've used for years as my bench mark for converting recipes.

"The short answer,based on typical all-grain processes and extract characteristics, is to use 3/4 (0.75) lb of liquid extract
for each pound of grain being substituted, or 2/3 (0.67) lb dry extract."

This conversion has served me very well over the years, though I sometimes round up and wind up with stronger beers than originally intended.  Which is not all bad.
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