I'm a mushroomer, was up last weekend shrooming (too early this year). I've grown them indoors. Here it is too hot in summer, so you want to do it over winter unless you have awesome insulation. Here, stumps outdoors are problematic without property for a couple appropriate trees for shade, the right stump, and a decent space for proper moisture (meaning not downtown). Since we don't know where you live we can't help in that regard.

Dan

My old memory is bad, but I seem to remember some years ago some one was going to start a commercial mushroom farm near Eaton. They were to use a "potato caller" since at that time all most every farm had one. I have no idea how it came out.
Greeley Tribune maybe in the 1950s ?????
Old man Kenny

Linked is the website for Rakhra mushrooms, grown in the San Luis valley - for those not familiar with the place, its a high desert environment known for growing potatoes and migrating Sandhill Cranes .....

Anyway, clicking around the link gives some interesting stuff.

Not mentioned at the link, they collect chicken house litter, compost it themselves to sterilize it, then inoculate it for mushrooms. We can sometimes buy the used, "mushroom compost" for a couple bucks a bag at the local Safeway.

I also thought it was interesting that the company is owned and managed by a Sikh family, and many of their employes are from a single village in Guatemalans - just not something one would expect in the San Luis Valley. But then they also have alligator / tilapia farms there as well :-)

We buy and eat them all the time.

Here is a link that might be useful: link

Yup we purchase their shrooms too. You can also find that mushroom precursor in older neighborhoods in lawns. The operation is sorta like a quonset hut design to keep the moisture moving. I prefer mushroom compost in the garden.

Dan

How do you get the millet from becoming mushy?

Well this is a really old thread in fact some of the posters have passed away.

You might have better look having your question answered elsewhere. Looks like there's some videos on youtube.