Using a Heating Pad - Yes or No

[Guest guest]

I brew in a closet that fluctuates between 64 and 69 degrees. Our drafty

apartment is very hard to keep at a constant temperature. I thought about

brewing my KT on a heating pad but had second thoughts. Since the yeast are

most abundant at the bottom of the brew, wouldn't using a heating pad

overstimulate the yeast and produce an excess amount of it?

Lawrence