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On beer gas

>Date: Sat, 24 Aug 2002 14:27:24 -0400
From: "James Purchase" <jppurchase at rogers_com>
>Subject: Brew Mix for Plants? 
>Rachel asked about using compressed CO2 + N2 (Brew Mix) in place of
>compressed CO2 (as a source of C) and KNO3 (as a source of both K and N).
>Enjoy the beer, but pass on the bottled gas.......except as a source of
>carbon dioxide.

Beer gas is usually sold at a mixture of 75% N2 and 25% CO2, so it wouldn't be 
as "concentrated" as plain old CO2.  The N2 is used to avoid the 
overcarbonation of beers like Stouts & Porters.  It also produces a fine, 
creamy head in such beers.

Andrew Roberts
Richmond Hill, Ontario
ICQ 130453482