Reinforced Mushroom Grow Bags, 25 Count, Oyster Spawn and Grain Root Substrate Growing Kit with 0.2 Micron Filter”, Heavy Duty 3 Mil Polypropylene Plastic

There seems to be some confusion from a few of the reviewers that this is supposed to be a kit, and rated it poorly because they only received bags. The Title and description clearly state All in one grow bags, NOT a kit. If you actually read and pay attention to the listing and pictures, it's obvious that these are bags only. All in one is referring to the bags having a prepared filter port meaning they are ready to use without any additional alterations. Now with the confusion out of the way, on to the real review. The quality of the bags is much better than some of the other brands that I have tried. They are a little more expensive compared to some others at the $.998/ea cost that I paid, but I had zero failures in bag structure or performance and zero contamination. The 3 mil is very durable, seals easily and completely without leaking or tears when I use an impulse sealer. With this thickness they are easy to stand up and fill, I am never concerned or careful moving full bags around, or worrying about seams or punctures. I've even used a few of these bags more than once for grain spawn(something I had never even considered trying with other bags) just to see if I could, and they actually worked perfectly. The .2 micron filter patch has been perfect for contamination free fresh air exchange. Bottom line, if you are looking for a sturdy, well made reliable grow bag that can handle 5lbs (or more) of substrate this is an excellent choice. I will definitely be purchasing more in the future.

These are really nice bags, plastic is thick. Size is bigger than I expected but that just means more substrate and more mushrooms!

They worked well. They withstood 15 psi. Only problem was that 2 of them open once they were sealed

I use there for a few purposes. First is for grain spawn. The bags hold PLENTY of grains. They work fine with the pressure cooker ( keeps space so they dont touch the sides). They can be sealed with my kitchen vacuum sealer. The mycelium grows / progresses fast. Second is as a grow bag. The bags allow plenty of space for spawn, substrate and fruiting. They stay crystal clear allowing you to check progress easily. I personally cut a small square opposite the original patch and use 2 layers of surgical They are super easy to use and take the abuse I put them thru while still looking good and functioning well.

This product is exactly what you want it to be. Sturdy and durable, these bags will not disappoint you. I inoculated about 6 bags before I moved to another state, and was terribly worried I’d lose my grow. Before I left for the new crib, I brought 3 bags that had colonized. I inoculated them in February, and these bags of spawn went with me to an apartment, to a hotel, to my new place. FOR 8 MONTHS THESE BAGS WERE GOING WITH ME FROM PLACE TO PLACE AND ALL 3 WERE NOT CONTAMINATED OR LOSING MOMENTUM AT ALL!!!!! WHAT?!?! I was POSITIVE these bags would contaminate, but I just put them all to sun today, and all 3 of 3 smelled and looked fantastic. These bags are amazing!!

I bought these bags back 3 years ago around 2020 and just used the last of them. 0 failures in my presto pressure canner. Nice thick and durable bags

Works for most part but can't be heat seem sealed tried three times and each time it melted instead of just fusing but had no issues in the pressure cooker

I bought a grow kit and was fascinated by the whole mushroom growing process. So I’ve decided to create my own substrate and use the spawn I bought online to try. It has been only two weeks so my experience is limited thus far. The bag is easy to use, relatively cheaper than others on Amazon. I was really surprised how much substrate the bag can hold. I used pasteurized straw and it took 8 lbs and one lb of grain spawn and still have plenty of room in the bag. Overall, it was a positive experience for a beginner using this bag.

Amazing bag . Bought 3 packages 25 bags per package. Each was 30$ Now I see the price has been raised to 40$

Excellent quality. Though, reading the packaging packet, Made in China, means it was sent to the U.S.A. and then sent to the U.K. Not really helping the planet! Happy with the product but not happy with my choice after finding that out on receipt of it.

pas d explication en francais , pour utiliser la poche , de l argent jeter par les fenetres , resultat néants

Buen tamaño pero son más frágiles de lo esperado, aún así funcionan

I have used these bags before. Very durable. I ordered a large lot this time. Oysters, lions mane, and other experiments were put into place by the first bags ordered.