JunkFood said:

What would you say about stuffing some polyfill in the tip of this?



[That was the best way for me to illustrate my point]

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ATLean said:

UNLESS you have a hole in the top and want to filter what falls in.

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Yeah, that's what I'm talking about.

I'm talking about the basic fruiting chamber here:



As far as I can tell, the concept is to cover it with something clear and to leave it uncovered just enough so a tiny amount of air can enter/escape (because you can't have it completely sealed--even with periodical fannings).

Using Tyvek/polyfill would allow for more air exchange while still keeping in the humidity...and there would be NO completely bare openings--it would be just Tyvek/polyfill, so that would greatly reduce contams. The only air entering the fruitaing chamber would be air that passed through the Tyvek/polyfill!

Example:

Cut a hole in the side of that bucket and patch it with a layer of Tyvek

RogerRabbit said:

Better yet, punch holes and don't cover with tyvek. The more air the better. It's a common mistake to think fruiting chambers need filters. Colonizing jars need filters, FC's don't, and they actually slow down the air exchange, leading to contamination.
RR

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