Shiitake Mushroom Dowel Spawn Innoculation and Lessons

This weekend I used up all my soy wax innoculating white oak logs with shiitake mushroom dowel spawn. I bought 1000 from Fungi Perfecti.

I made several purchases from Fungi Perfecti to create our first shiitake mushroom garden. First, I bought 100 plugs and one pound of soy wax.

The 100 plugs were not even enough to innoculate one 7 inch diameter, four foot log.  Therefore, I called and ordered 1000 plugs.

I used the 1000 plugs to innoculate the rest of the first log, and three more.  Then, I ran out of wax and gifted the rest of the spawn to my neighbor.  I think I had around 300-400 plugs left.

It is a pretty good bit of work to make a shiitake mushroom garden.  I'm talking about just the drilling and innoculation process after you gather the logs.  I have a pretty good drill and it still took several hours to do all the work.

Here are the steps you should follow to efficiently innoculate logs.  (These steps were discovered to be the most efficient after trial and error.)

• Drill all of the 5/16 inch holes in a log.   Each hole is 4 inches from the next laterally.  Go down the log drilling holes.  Turn the log and drill holes about 2 inches below the first line, staggered so the new row lines up roughly in the middle of the previous row.  Turn and drill. Turn and drill.  Do this until you have rows of 5/16 inch holes all around the log.
• Hammer in the plugs with a rubber mallet.  Hammer plugs into all holes.
• Melt about 3 ounces of wax in a metal container.  Apply the was with a brush on each of the plug spawn to seal the log.  If you need more wax, refill and keep covering your spawn plugs.
• Repeat the process log by log.

I used an empty bean can for my wax container and heated at very low over my gas stove.  If you try to cover too many plugs your wax will cool down before you can finish.

I like to do one log at a time because it gives a sense of accomplishment with each log. Also, my hands got tired of drilling after so many holes in a log.

I discovered that chickens like the taste of soy wax.  Keep your chickens away from your project or they may decide to eat your wax off your logs in your garden location.  Hopefully, my chickens do not decide to eat my wax!

I ran out of wax after four logs.  One pound is not enough.  I recommend you purchase the ten pound bag of wax and 1000 spawn.  That should insure you have enough wax to cover all your spawn.  1000 spawn will innoculate about seven or eight logs (6-7 inch diameter) cut to four foot lengths.

I stacked my logs horizontally about twenty feet into my zone five edge under the canopy of a large oak. Fungi Perfecti recommends a vertical stack, but I did not want to risk getting invasive fungus into my logs before the shiitake spreads throughout the wood.

I will need to move my stack from its present location.  I discovered that even though they are located under a large oak, my logs are getting some sun in their present location in the noon sun. The sunbeams shine right down through a hole in the canopy on top of my stack.  

No problem.  It just takes some manpower to move them.

Hopefully, we have shiitake next year around this time.