Saturday, February 25, 2012

Brewer's points

Many brewers like to accomplishment the abreast beeline accord amid (SG -1) and °P to abridge calculations considerably. They define

p_t := 1000(SG-1)\, ,

call it "points" or "brewer's points" or "excess gravity" and use it as if it were extract. The Plato amount is appropriately about the credibility disconnected by 4:

p \approx p_t/4 = 1000(SG-1)/4.

As an example, a wort of SG 1.050 would be said to accept 50 points, and accept Plato amount of about 12.5 °P.

Points can be acclimated in the ADF and RDF formulas. Appropriately a beer with OG 1.050 which brewed to 1.010 would be said to accept attenuated 100*(50 - 10)/50 = 80%. Credibility can aswell be acclimated in the SG versions of the booze formulas. It is artlessly all-important to accumulate by 1000 as credibility are 1000 times (SG-1).

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