You really have to find a reputable supplier and I would try to find a source close to you that would not require shipping in extreme temperatures. The kits of bagged substrate are usually fully colonized or nearly filled with mycelia in appropriate temperatures. Better supplier would have set it up so they ships ones that, when placed in home environment, would readily finish by covering the outer surface with white then fruiting -- growing mushrooms. Oyster mushrooms might take a month or less, shiitake two months at most. These indoor kits with small volume can only flush maybe twice.
Outdoor shiitake logs will take longer -- a year to fully colonize from plugs -- unless maybe you bought already inoculated logs. Are there strains of shiitake that grows in Okinawa? I have the severe freezing winter so shiitake can only grow during the above freezing months (my current strain had spring and fall flushes... I want to also get a summer flushing strain) and are dormant in winter.
I bet you could grow eringi -- King Oyster -- which is probably not possible for me, though I'm researching possibilities. Also the tropical pink/coral oyster looks intriguing.
I reported my experiences with pearl oyster mushrooms and shiitake growing in a couple of threads -- you may find them interesting.
Subject: Growing Edible Mushrooms - from kits, spawns, and plugs
Subject: Mushroom Gardening?
With the bunashimeji, what I hope to accomplish is to fully colonize the media -- rice/ucg/milletntil they form a solid mass. If they do this, they will be strong enough to inoculate a larger volume substrate and grow them outside -- I'm thinking packed pasteurized straw or maybe straight to oak logs (I would use a sandwich/stump method). If I can keep them pure and uncontaminated, mushrooms that grow will be edible.
...mochi... what kind of recipe's have you tried? -- my dds favorite is to toast them until puffed, dunk in hot water, then roll in kinako (roasted soybean flour)/sugar/bit of sea salt mixture. Younger dd also likes toast until puffed then roll up in strip of nori/seaweed.veg with melting kind of cheese (aged gruyere, cheddar, Colby-jack, muenster). For me, zenzai (toasted until puffed mochi in soupy sweet soft-cooked adzuki beans -- hot or warm or cold) is a special treat. I recently tried putting some in monja-yaki, but this was my first time making it, snd I lost the mochi in the mixture -- couldn't identify them in the cooked monja.
