Paper tyvek is garbage and doesn't breath for shit. Regular cloth tyvek also does not breath for shit for this kind of project.
Don't be scared of open air.You have probably made a gigantic square hole for the tyvek ehh? That's a problem because now the hole is too big to remove it. Take a pocket knife and stab about 8 slits in the bag all around and call me in the morning. Just kidding don't call me you don't listen to me for nothing.
The top of the bags falling is a problem I have solved. Roll a thin "stick" of wood that is wider than the bag up in the top of the bag and have some kind of hooks that you can support the ends of the sticks in. Or you could just see my tek.https://mycotopia.ne...fficial-thread/
Cool thanks for the tips, I will be reading your thread in a min. I do open those bags a few times a day. Pins are forming on the sides between the bag and sub so it actually seems like they want moisture. They are pinning more now, like I said, this B+ iso takes 15-20 days every time and keeps pinning as the other fruits mature. I never get even flushes with it, but the ms B+ and the other isolated strain have been quicker.
I would say the envelopes provide less GE on spawn jar lids than the paintsuit, and both work just as well as micropore, as far as colonization speeds.
I am spawning some in a little while, B+ and burma from different isolations from agar sectors put to popcorn again in coffee cans with bags over em. I want to do some with holes covered with micropore, some with polyfil, and I was thinking of using the material from these surgical facemasks(link) I got, which are breathable and filter out 99% of bacteria, somehow taped on, so that might be better, they are really breathable.
You are right that the paper tyvec envelope and paint suit material are not that breathable. My paint suit was not actually even tyvec, it is medline, and it is more breathable than the actual dupont tyvec ones. I have put a piece of it over my mouth to test the breathability and it seems hard to breath through, but still breathable, and we use the tyvec ones at work, and that material is slightly different, the tyvec brand is not as soft or breathable.
The hole is 1" x 4", cut evenly, it is NOT a gaping hole.
Edited by Billcoz, 28 February 2019 - 01:30 AM.