Ordered these on Christmas day and chose UPS ground shipping, I got them 3 days after my order. I have them incubating now and so far they appear to have nice white growth starting! Excited!!!

I used this site 5 yrs ago and again recently. THEY ARE FANTASTIC!!! Very fast and responsive to queries. Quality service and products! If I need supplies these are my guys. 5/5 stars!!!

So I've been enjoying this hobby for a couple years now. After a nasty bit of contamination I read that often times the cause of the contamination is the material itself so I decided to simply things and order this. Now im not sure what im going to do with all my materials because after using these I dont think I'll ever go back to making jars myself. These bags are not only super simple to use but produce results much faster than my previous technique. Although a bit pricey compared to doing this yourself, it's cheaper than losing several projects due to contamination.

I've ordered from them previously and they are always fast, on time and have a spectacular product!

These babies will always be a staple of saving my butt in a pinch I’ve only had one bad bag ever and I’ve been coming back for almost 2yrs Midwestgrowkits is the only company I trust for pre sterilized grains