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Trying to Grow Mushrooms on Sawdust

4 Comments 26 October 2009

Trying to Grow Mushrooms on Sawdust
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!

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James

James - who has written 65 posts on GrowingGroceries.com.

I'm a 20-something guy passionate about farming and living sustainably. I live and work on a small farm where we grow vegetables, fruits, and free range chicken for local markets and restaurants. Life rocks.

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4 Comments so far

  1. Laura R. says:

    Hey! I remember when you guys were growing mushrooms! That was so cool. We went to see them and all i remember is that it was a windy spooky evening when i saw them and now every time i see shiitake mushrooms i think *spooky* and fallish. i thinks its great that you’re gonna give mushrooms another try though!

    I hope you’re feeling better James!

  2. caglar says:

    It is a really helpful information about mushrooms. I live in a village and mushromms are very important for us,
    there is also a very useful guide that i got great informatin about mushrooms:

    http://agricultureguide.org/

  3. Carlos Ochoa says:

    Did you ever figure out if your peroxide approach was successful?

  4. James says:

    Carlos-

    It didn’t want to work for me, the bags all became contaminated with mold. I don’t know if the contamination occurred before the peroxide, of after when I mixed the spawn in, but I ended up having to throw it out


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I'm a 20-something guy passionate about farming and living sustainably. I live and work on a small farm where we grow vegetables, fruits, and free range chicken for local markets and restaurants. Life rocks.

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