There is a business 12 km north of Mae Sot on Highway 105
across the highway from the fuel station and police box,
who not only have their own mushroom barns,
they sell bag kits to the general public.
They sell Clear Plastic bags, around 1.5 liter,
heat sterilized sawdust inside,
For B8.00 each
I presume that also comes with the spores for mushrooms to begin growing
At one time there was a mushroom expert who also operated a resort,
in the direction of Pai, in MaeHongSon province,
I know our mushroom spores come from the Talat Thai market at Rangsit on the left hand side of the main road just before Bangkok — that’s as if you are heading to Bangkok from Korat direction That’s where all our mushrooms go to every night.
I have seen little DIY mushroom cultivation kits in the organic produce shops (Lemon Farm?) in Paradise Mall.