Homebrewers Association | AHA Forum

General Category => All Grain Brewing => Topic started by: jdurose on August 24, 2010, 11:58:10 PM

Title: potental extract for rolled oats and rye malt?
Post by: jdurose on August 24, 2010, 11:58:10 PM
I've been searching for the potential extract values of rye malt and rolled oats and have found limited resources on the web.  I don't use any software to calculate my recipes, I've just created my own spread sheet using average potential extract values I've found in brewing books and I usually hit my target gravity right on with my all malt beers.

Has anyone found reliable potential extract values for rye or rolled oats, or know if the potential extract simply varies greatly from batch to batch with these grains?
Title: Re: potental extract for rolled oats and rye malt?
Post by: tygo on August 25, 2010, 12:57:02 AM
Beersmith uses 29 ppg for the Rye Malt and 37 ppg for Flaked Oats, which I would think would be about the same as rolled Oats.  I haven't used Oats in a brew so can't confirm that one with practical experience but the Rye Malt potential seems accurate.
Title: Re: potental extract for rolled oats and rye malt?
Post by: tschmidlin on August 25, 2010, 04:36:57 AM
ProMash uses 30 ppg for Rye Malt and 33 ppg for Flaked Oats.  I stopped using ProMash a while ago, so I can't speak to the accuracy of the numbers.
Title: Re: potental extract for rolled oats and rye malt?
Post by: Hokerer on August 25, 2010, 01:07:43 PM
Beersmith uses 29 ppg for the Rye Malt and 37 ppg for Flaked Oats, which I would think would be about the same as rolled Oats.  I haven't used Oats in a brew so can't confirm that one with practical experience but the Rye Malt potential seems accurate.

I've used Rye Malt and Oats and when I have, I've come pretty close to the numbers predicted by the Beersmith calculations (using those default values).  Granted, the Oats have only been a little over a pound so it would be hard to tell but the Rye has been up to half the grist so that one should be pretty accurate.
Title: Re: potental extract for rolled oats and rye malt?
Post by: denny on August 25, 2010, 03:58:01 PM
ProMash uses 30 ppg for Rye Malt and 33 ppg for Flaked Oats.  I stopped using ProMash a while ago, so I can't speak to the accuracy of the numbers.

That's right on the money for rye malt.