Been using these jars for several years. They work, they colonize quickly, they are reasonable in cost, and they always arrive in a timely fashion, without damage. I don't see a reason to venture elsewhere. Midwest delivers!

I’ve inoculated in very dirty environments. Keep the needle clean and sterilize with a flame every 3 jars. No contamination yet and all of them colonized completely as usual. Want to make the jump to monotubs soon.

This is my 3rd order of the pint jars and just from my experience, I've had about a 90% success rate. I use the oven method for inoculation and to me this is the best method for these jars. I'll definitely be buying again.

You know it’s a 100% good from these folks and delicious 😋

Midwest is the standard in what they offer, and the jars are no exception. Second run with growing via the jars and so far NO contams and the magic grows fast and reliably. Love them!!!