"Ray" wrote in news:27-dnUPN5LCnlfzfRVn-
:

What do you need non-absorbent cotton for?


The instructions that I have on using baby food jars states to poke a hole
in the center of top and stuff tightly with non-absorbent cotton. This is
done before they are sterilized. It's supposed to filter out the bad stuff
and alow the jar to breathe. Since it's non-absorbent it's not supposed to
wick any mosture out of the jar also. I also have a really old AOS book
that uses Erlenmeyer Flasks and stoppers them with non-absorbent cotton.
I have read where one person used bandaide spots for this but I don't think
a bandaide would survive heat sterilization.
I thought of trying synthetic fibers but they might melt and it may
take a lot of tests to find one that doesnt.