Unless you plan to grow really often and in pretty large quantities, just buy the pre-sterilized grain jars for bulk grows or pre-made/sterilized PFTek jars from someone like Mushbox. The pressure cooked costs money, you need to fully understand the pasteurization process, and its just a pretty big pain. Again, unless you really plan on quantities.
Do NOT buy the pre-made growing chambers. They are cheaply made and can be put together from Walmart items for less than $50. I purchased the Mycodome and stop using it mid way through my first grow and converted to my Walmart home made version. I will tell you that one you complete a successful bulk grow, you would never consider doing the PF Tek again. The yield difference and size is amazing. Largest dry shroom from cakes was 10 grs wet or 1 gram dry. In the bulk, I produced a 42 grs wet and just over 4 grs dry. That was one big f'ing fungi! Good luck
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