From the HBD Archive
From: Glenn Anderson <>
Subject: Wort Chillers
Date: 1992-07-16 00:00:00 GMT

I've recently manufactured a counterflow wort chiller out of garden
hose and copper tube. It works great, with one exception. After it has
sat between batches it seems to develop a sort of light blue flakey
substance inside the copper tubing, requiring quite a bit of
flushing before all is removed. Does anyone have any idea what this is
or if it is harmful to me or the beer. It would seem to me that there
must still be microscopic quantities of the material entering the wort
and ultimately my belly.
- --
Canada Remote Systems - Toronto, Ontario/Detroit, MI
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