Partial Mash FAQ
#1
Posted 31 March 2009 - 07:44 AM
#2
Posted 31 March 2009 - 08:15 AM
#3
Posted 31 March 2009 - 08:16 AM
I have it and I'm going to be posting it here as soon as I obtain permission from Jimvy. If you want, I can e-mail it to you. PM me your e-mail address.Does anyone have the partial mash FAQ from the green board? I have read a couple others but I really liked that one. I'm gonna do a partial mash for my second beer and since the GB is down, I figured the guys here would know.Thanks!Rich
#4
Posted 31 March 2009 - 08:34 AM
#5
Posted 01 April 2009 - 07:15 AM
Post away!I have it and I'm going to be posting it here as soon as I obtain permission from Jimvy. If you want, I can e-mail it to you. PM me your e-mail address.
#6
Posted 01 April 2009 - 09:46 AM
#7
Posted 01 April 2009 - 09:55 AM
Yes it is unless you have a very good partial mash system. When I was partial mashing, I typically got around 50% efficiency.Why should you keep grains that need conversion to 30-40% of the partial mash? Is it that much more inefficient than a regular mash?
You're assuming 100% efficiency in the all grain version.So, based on John Palmer's findings the DME is (40PPG X 6.5 lb) /5 Gal = 52 Points based on the recipe above (not including steeping because we are steeping in both)If you convert the all grain to points: (32PPG X 7 lb)/5 Gal = 44.8 points + (30PPG X 3 lb)/5gal = 18 points = 62.8 points totalThere is a discrepancy in points between the all grain and the extract version. Any idea what I am doing wrong?
#8
Posted 01 April 2009 - 10:51 AM
No, I used the table in John Palmer's book to calculate the points based on 85% eff all grain. I also assumed the partial would be 85% as well.So if I want to convert it to a partial mash assuming 50% eff (again neglecting the specialty grains):1.125lb total base malts to match the specialty grains (50/50 mix)(0.7875 lb MO at 19 PPG)/5 gal = 3 points(.3375 lb Mun at 17.5PPG)/5 Gal = 1.2 PointsTotal = 4.2 pointsFrom my calc in the post above for pure extract points total = 52So I need 47.8 points of DME which is (40 PPG X (y lbs))/5 Gal = 47.8y = 5.975 or approx 6 lbs DMEDoes this sound right to everyone?You're assuming 100% efficiency in the all grain version.
#9
Posted 01 April 2009 - 11:19 AM
#10
Posted 01 April 2009 - 12:09 PM
#11
Posted 01 April 2009 - 12:41 PM
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