Author Topic: Weyermann Pilsner malt - potential extract?  (Read 2014 times)

Offline revolutionisbrewing

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Weyermann Pilsner malt - potential extract?
« on: November 23, 2010, 06:40:53 PM »
Does anyone know the potential extract of Weyermann Bohemian Pilsner Malt, or any specs that could help nail it down, i.e. DBCG and moisture content?  The website is no real help.
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Offline Kaiser

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Re: Weyermann Pilsner malt - potential extract?
« Reply #1 on: November 23, 2010, 07:13:45 PM »
fine grind should be 83%, moisture 4% and FG CG difference is between 1.5 and 1.8. These are pretty typical numbers for German malts.

Unfortunately they don't show this malt's average analysis on the web.

Kai

Offline revolutionisbrewing

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Re: Weyermann Pilsner malt - potential extract?
« Reply #2 on: November 23, 2010, 07:43:26 PM »
Thanks.  When I plug that in to ProMash, I get an extract of 1.038.  However, that doesn't jive with a formula I got from another forum:

SG = (DBCG - MC - .002) * 46.214

For a fine grind of 83 with a difference of 1.65, that would give me the following:

((.83 - .0165) - .04 - .002) * 46.214 = 35.65 or 1.036

Am I missing a variable?  Which formula is more accurate?
Star City Brewers Guild

Keg: English Brown
Primary: Belgian Artisanal Amber
Conditioning: Belgian Double IPA with Brett C, Flanders Red, All-Brett Pale

Offline Kaiser

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Re: Weyermann Pilsner malt - potential extract?
« Reply #3 on: November 23, 2010, 09:04:02 PM »
the moisture content is accounted for by multiplying the dry based extract potential with (1 - MC/100). I.e. the extract potential is 83*.96 = 79.7%. Multiply this with .476 and you get 38 pppg. If you take the dry basis extract corrected for moisture content you get (83-1.5)*.96*.476 = 37.2 pppg.

In the end the difference comes from the % to pppg conversion factor and from the exact extract potential that is used, A difference of a few pppg is not unusual.

I use the fine grind exract as the benchmark for efficiency calculations. To my knowledge the coarse grind extract is only determined to determine the FG/CG difference which is an indication of grain modification.

Kai