YOU DO NOT NEED A PRESSURE CANNER OR STERILE ENVIRONMENT FOR THE CULTIVATION OF FUNGI. Period. Nor do you need to wash your hands or clean surfaces. Do not believe anyone who states otherwise for they are twenty years behind in knowledge or (most likely) they want to sell you expensive equipment (laminar flow hood, pressure canner, surface sterilization liquids, complete sterile rooms etc. etc.)
Im not sure what youre getting at here. sterility is key with fungus my friend..sure you can do PF tek with stovetop pastuerization, but pressure canners are always better.
as far as your statement about cleanliness and *not washing your hands*, thats pretty silly. the only way this is so is if you are doing outdoor growing, and even then you need to get sterile spawn.
Im not trying to be contrary, but ive seen lots of growing setups, lots of substrates and techniques. by far the highest yeilds come from casings. usually 5050 (verm/peat) spawned with finch seed. Im not sure what technique youre getting at...im assuming some invitro pinning stuff. Thats fine...but if you
really want to grow shrooms, and i mean lots of them, learn how to use birdseed spawn....and yes for that you do need a pressure canner(finch seed by nature is next to impossible to sterilize without a canner).
ok, so you dont have to take my word for it. heres some examples, courtesy of my friend ryche hawk.
thai cubensis
http://www.thehawkseye.com/thai_lipa/thaily1_1fl.jpg
cambodian cubes
malaysian cubes
http://www.thehawkseye.com/malaysia/mal_bs3.jpg
panaeolus cyanescens and a few 'b' strain PF cubes
golden teachers
http://www.thehawkseye.com/eq/ecu_od2_4.jpg
all these casings are from this technique:
http://www.shroomery.org/findorgrowthem.php?View=docs&doc=33
except for the pan cyans, which im not too sure about. Ryche does have a grow room with hepa filters, but this isnt totally neccessary. the important thing is the substrate, the sterilization, and the growth environment.
If I'm reading this correctly..and I like to think that I am.....