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How to use Inoculated Mushroom Dowels
Instructions:
Inoculated Dowels are used to inoculate wood logs or stumps with the mushroom fungus. Use clean wood, which has not been contaminated with any other fungus. This is usually accomplished by using freshly cut live wood, which has been dried shortly after cutting. (By storing the wood dry, wild funguses are prevented from growing into the wood.) Good sizes of wood to use are logs 3 to 8 inches in diameter and about 2 to 4 feet long. (Note: Older, but not rotten wood can be used, but pasteurizing it may be a good idea. Pasteurizing kills any contaminating fungi, which may have begun to grow into the old wood. Pasteurize the wood for 3 to 6 hours at temperatures above 140 degrees. A steel barrel with a couple inches of water inside it sitting on cinder blocks can be used as a cooking chamber. Build a small fire under the barrel to boil the water. Cover the top of the barrel with a piece of plywood.
Be sure if you are using old wood that it is not rotten. Rotten wood will not grow mushrooms.) Soak the logs or leave them in the rain, until they are wet inside, this may take one to two days. Do not remove the bark from the logs. The bark is important it creates a microclimate necessary for the baby mushroom to form. The dowels are 5/16 inch in diameter so the holes we will drill into the logs need to be at least 5/16” and 1 ¼ inch deep. Space the holes 6 to 12 inch apart. Gently tap a dowel into each hole until it is flush or below the surface of the bark. Then drip some bees wax over the end of the dowel to seal the hole to prevent moisture loss and contamination. Use only one mushroom variety per log. When you are done keep the logs wet and moist for 8-12 weeks to give the mycelium time to grow through the logs. This can easily be accomplished by leaving the logs outdoors in the rain and dew or under a tarp in a shady spot. Mycelium cannot grow in dry or water saturated log. You can stack the logs outside under a tree in the shad to keep them from drying out. Maitake logs, after fully colonized (2-3 months later) should be buried 2 to 3 inches under ground. They prefer to fruit up and out from the soil. You can also do this with many other varieties.
In a few days, the mushroom mycelium will begin to grow off the dowel and into the wood. It will continue to grow into the wood as long as the wood is moist and, until it colonizes the entire log or stump. Depending on the variety of mushroom, colonization may take 2 to 6 months. The temperature will also affect colonization time. Warm temperatures speed up colonization and cold temperatures slow it down.
Storing your dowels: Your dowels can be stored by refrigerating them. Temperatures of 35 to50 degrees F. are adequate. Dowels can be stored for several weeks and even months. I recommend four to six weeks as a safe period of time. Some varieties of mushrooms store better than others, but to be safe use them as soon as possible.
Fruiting mushroom logs and stumps: Since growing mushrooms on logs and stumps is usually an outdoor operation, the grower is subject to uncontrolled weather conditions to cause the logs to begin to fruit mushrooms. This generally happens when the weather is wet for a few days and the temperature is between 50 to 70 degrees. Rain or heavy morning dew for several days can also cause mushrooms to fruit. Keep a watch on the logs when the weather conditions are favorable. Logs and stumps can produce mushrooms for several years, with breaks during the hottest and coldest times of the year.
Wood to use: Oyster mushrooms will grow on all hard and semi hardwoods listed below. Shiitaki, Maitake, Hericium (Lion’s Mane), and Reishi should be grown on hardwoods only, see table below.
All Oaks, and Tan Oak
Willow
Bay
Madrone
Cottonwood
Elm
Manzanita
Poplar
Most fruit wood
Ash
Alder
Maple
Wood NOT to use:
Cypress
Redwood
Juniper
Pine (conifers)
Cedar
Eucalyptus
Fir
