LOSTRONAUT 60-Pack Mushroom Grow Bags - Extra Strong, Large Autoclave Bags with 2 Micron Fiber for Spawn, CO2 Control, Cultivation Kit & Gardening Supplies - Mushroom Growing Kit

Just as title says. The bags are durable in a PC for 3 hours at 15psi. No reason to go longer than that.

Thank you

Will pop / burst during sterilization, very thin mil, melts during sterilization. Unused Bags have holes/rips, Defective bottom seals on bags and bags prone to popping under 15psi x 90 or 180min sterilization. Not worth wasted money, time, effort, excess waste…

There only negative things i can say.. After i pasteurize substrates in the pressure cooker, you gotta be conscious that the plastic is going to be flexible while warm, more like plastic wrap than ziplock-bag-like behavior. I haven't had the best luck great sealing them but then again I was using a hair straightener. It's a good value. Even with the temporarily increased flexibility, they haven't torn from what i can tell. I'll still use jars, but only for uncertain propagation rather than potentially losing a whole 5lb bag. These have been great for viable, clean spore syringes.

These are sturdy, have held up well at 15 psi for 120 minutes, and are the perfect size to pack 6x 3lbs bags into a 23 Qts pressure cooker. Ordering more!

The bags hold the 3.5 lbs of soaked grain I need them to hold but the bags are thinner plastic than I was using before and they are difficult to get a perfect fold with before I put the bags in the pressure cooker. Hasn’t affected my spawn so far, but the bags won’t remain perfectly vacuum sealed after I remove from pressure cooker like my previous ones did.

Using these to grow Lion's Mane - They're sturdy enough if you want to do an all in one bag and mix it together through lots of squeezing of the substrate through the bag. The filter works and allows enough air exchange for colonization.

Nice size for 5-6 pound blocks. Added substrate both ways, pre mixed wet and pre mixed dry with adding the water straight to the bag. I did break one when doing a over vigorous shake. I'll be ordering more soon.