This is my second order and the product arrived in excellent condition and was packed extremely well. Will continue to buy products from you as my needs persist.

These jars were spectacularly simple to use. Sterility was obviously good. The packaging (which I hate that I need) was perfect - vermiculite remained atop the substrate. Nice foil caps made resealing the jars a breeze. I'll buy these again.

Love the small jars they are super easy to work with and very predictable.

On day 9 and jars are half way covered!!! Can't see how it could be better than this. Thanks guys for a really good product!

After trying Midwest's Ultimate Substrate Jars, I no longer make my own B.R.F. cakes. With Midwest's jars, I've had colonization occur faster than I've ever seen! Not to mention they come in the glass jars as described. If you know how to inoculate in a sterile manner, you CAN NOT go wrong with these jars.