From the HBD Archive
From: Matthias Blumrich <mb@Princeton.EDU>
Subject: Stuck ferment?
Date: 1992-04-13 16:23:11 GMT

I brewed a pale ale using M&F extra light extract and Whitbread ale
yeast Saturday night and have it in a 7 gallon plastic primary with a
blowoff tube. By last night the ferment appeared to be stuck because
there was no more bubbling in the blowoff. When I opened it this
morning there was about a 1 inch head of krausen (sp?) on top. A few
minutes after closing it, I heard the plastic lid flex and then it
started bubbling away again for a few minutes before stopping. Could
it be that the pressure flexes the lid and breaks the seal, and the CO2
is escaping from the sides? Note that there is a lot of pressure
inside because if I just press down lightly anywhere I get bubbles.
Could it be that I didn't aerate it enough? If so, what can I do? Any
help is appreciated.

- Matt -

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