From the HBD Archive
From: Jay Hersh <hersh@expo.lcs.mit.edu>
Subject: Spent Grain
Date: 1992-04-15 16:47:48 GMT

a lot of micros and brewpubs simply flush their spent grains.
>From what I understand as long as the sewage system can handle
them (i.e. it is not ancient and dilapadated) many communities
are actually happy to have them in the sewage system (I have read
this in articles and been told this by some pub brewers) since
it provides a source of nutrient in the sewage treatment plants,
many of which are based on microbial decomposition, in which they
have to add a certain level of nutrient to insure proper health
of the microbes. The spent grains supplement this in some systems...

-JaH

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