EH dude, by far easiest way is pressure cooker but u can just put them in a pot with a lid on it an boil for a bout an hour, or until the individual lids on ur substrates get sucked in, meaning, u basically canned them, (made the environment none to lil oxygen, but anyways, from the sounds of it, u got a lot more reading to do and will have a lot of work, check out www.shroomery.org or maybe its www.shroomery.com, actually i think both work, used to atleast.