http://www.sporestore.com/images/SporeStore_Mushroom-Mycelium_Jars.jpg

Anyone ever used them?

No because they are for noobs and retards. It's a jar with polyfill coming out of the top you could make them and the substrate in no time at all by yourself.

edit: wow I didn't see the price
box of 24 jars= under 10 dollars
bag of polyester filling= 5 dollars
brown rice flour= 1 dollar
vermiculite bag=5 dollars
pressure cooker=40 dollars
So basically for under the price of the jars you could have a pressure cooker that would let you reuse the jar infinite times, the same number of jars, and the material to make more substrate once the first stuff has been exhausted. Not to mention you have to order those suspicious things to your house.

I would use the bags if I was going to use a premade substrate, You can find the bags for cheaper and you can can go from inject to harvest with just two steps. Store in cool dark place than show to light once mycelium is devoloped. Than open bag, harvest, ect

Fuck getting the premade jars, not to mention unless you live in a third world country the mycelia is just as illegal as the mushrooms. Hell you would probably score a cultivation charge out of it. Just make your own, and dont keep them in a cool place, they need to incubate in the mid 80's thats farenheight for all you worthless fucks who use the metric system. And yeah they are gonna fuck you from here till sunday buying shit like that. All the grow kits, premade shit is all overpriced garbage to steal some poor fucks money. It is actually really cheap and easy to do it your self with all the shit you can find at the local Stop-in-steal.

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