Mushroom Grow Bags (50 Pack) - 6 Mil Thick Autoclave Spawn Bags with 0.2 Micron Filter for Your Grain - Mycology Supplies - Large Size 8" x 5" x 20"

My usual supplier was behind on restocking grow bags, so I recently decided to try something different - I saw the Sojourner grow bags and decided to give it a go for my gourmet mushroom growing, and I have to say, I'm beyond impressed with their performance. These bags have exceeded all my expectations and are now my go-to choice for mushroom cultivation.The first thing that caught my attention was the 6 mil thickness of the bags. It's thick enough to withstand use in my pressure cooker without tearing or leaking, yet still flexible enough to allow for easy handling and manipulation. I've used other bags in the past that simply couldn't handle the pressure and would give me a few fails, so I'm thrilled to have found a product that can.Another feature that I love about these bags is the 0.2-micron filter, which is perfect for my needs. It provides ample air exchange for my mushrooms to grow and thrive, while also keeping out unwanted contaminants. I've had zero issues with contamination since using these bags, which is a testament to their quality and effectiveness.Overall, I'm extremely pleased with the Sojourner grow bags, and I highly recommend them to anyone looking for a reliable and convenient way to grow gourmet mushrooms at home. These bags are made from high-quality materials, and they're incredibly easy to use. If you're tired of dealing with flimsy bags or bags that can't handle heat and pressure, but without breaking the bank, then give Sojourner grow bags a try. You won't be disappointed!

Seems like a good product at a great price. Only issue is that they are shipped in plastic and the outside three bags had damage from shipping.

Been through five so far and had a little melting/warping after sterilization at 15psi for 2.5 hours, didn't appear to be too out of the ordinary and it didn't seem to affect the integrity of the bag. I put my grain in and sealed them up with a double seal and really worked the grain into my substrate, it held up quite well. I didn't notice any leaks and they look good so far.I have to say these sealed up much better than the ones I bought from my mushroom shop. I will see how the others go, but so far I would buy again.

Work great, holds up for 2 -1/2 hours at 15 psi .

They appear to be working and a must have for Lions Mane!

I grow gourmet mushrooms. This is great for the bag tek. The size the thickness the sturdiness and functionality is the best part.

I made up about 50 grain bags, pressure cooked them just like I have done hundreds of times, and every single one was weakened or blown out and I ended up transferring in front of my flowhood all 25 bags I cooked into fresh bags which was super wasteful and I’m not sure if the fresh bags will withstand colonization and breaking up the grain. Then the remaining 25 bags I transferred into thicker unicorn bags and am returning these before they waste more of my time. We’re talking hours of time was wasted dealing with these. I accidentally poked the bags (new not autoclaved) with my fingertips when I was spreading out my lc after noccing them, and probably about 5 bags have a thin spot now where the plastic could easily rupture. Just make sure it wasn’t my technique I did a round of pressure cooking right after with unicorn bags and had zero issues. By far the cheapest worst bag I have ever used for grain spawn, I am returning and asking for all my money back. I invested 4x (if not more) as much money in the product going in the bags as I did the bags themselves, and now there’s a good chance I’m going to lose even more product over the next few weeks because of this. Thick bags, high quality air filters are the only way to go. Why does amazon even carry this garbage?

It looked decent but when I went to sterilize in the pressure cooker the bag came out all warped and sort of “melted”. It definitely did not hold its shape and that made it impossible to deal with my impact sealer.EDIT: seller reached out to me after my review and refunded me the full amount. They apologized for it not working out for me and said good or bad they wanted to know and appreciate customer reviews. They did not ask me to edit or remove my review. I appreciate a business like this who actually cares about the customer. It didn’t work out for me but I’m sure it works great for others.