Trying to Grow Mushrooms on Sawdust

October 27, 2009 by Gardener  
Filed under Growing Groceries

So I’ve been looking at growing mushrooms lately.  Way back in the olden days, say fourish years ago, I used to grow Shiitake mushrooms on sweetgum logs outside, with moderate success. Somewhere along the line I stopped and can’t really remember why.
CIMG0144
Anyway. the other day I bought, from MushroomPeople, a few bags of mushroom spawn (in plant terms, spawn is like transplants; while spores are like seeds). My intention is to grow them in sterilized  oak sawdust in plastic bags. The sawdust must be sterilized so competitor (weed) fungi don’t establish a foothold. Oak isn’t the best, apparently it takes most species longer to fruit on oak as compared to fast decomposing species like alder. Oh well. Find me a freakin alder tree around here and I’ll use it.
I bought three types of spawn: Oyster Mushroom, Maitake, and Lion’s Mane. Lion’s Mane is really funky looking.
By nordique on Flickr

Oyster Mushroom, By nordique on Flickr

Lion's Mane by frankenstoen on Flickr

Lion's Mane by frankenstoen on Flickr

Maitake by kthread on Flickr

Maitake by kthread on Flickr

Sterilizing the sawdust is easier said then done. If I had a pressure cooker it would be simpler.  Today I tried using  Hydrogen Peroxide to sterilize the substrate, as it’s pretty effective at killing fungal spores (I use it to cure dampening off in seedlings). I mixed hydrogen peroxide with boiled water and poured it inside the bag of sawdust.           Not sure if it worked or not. We’ll see in a few days I guess.
I say sawdust, but its’s really a mixture of sawdust and rice bran with a little lime to balance to ph. I found out that I like rice bran. It smells yummy.
Anyway, I have the bags sterilized and waiting to be innoculated! I would have done it today but I ran out of daylight. More news on the mushroom front tommorow!

Comments

Tell us what you're thinking...
and oh, if you want a pic to show with your comment, go get a gravatar!