While in Japan, we did a few short hikes that took us into the forest. We saw what looked like logs covered in plastic or tarps. We tried to figure out what these might be. Did they cut down trees for firewood and the plastic was to keep them dry? Maybe, but why would they be no where near a building that required firewood? Did they cut them down for some purpose and then put plastic over them to claim them so no one else took them before they could come back for them? Plausible, but not a solid answer. Is this where plastic grows? Ok, that’s not a real answer. Was it actually bags of trash and it looked like logs covered in plastic? Sad, but slightly more plausible than the other ideas. We saw some logs piled up at the retreat center after we got there. They were not covered in plastic. One day someone asked me if I knew what the log piles were for. I didn’t. They have mushroom spores on them and at some point, when it is determined they are ready, they will cover them with plastic to help keep it dark and moist and create the right conditions for the mushrooms to grow. That answer never crossed my mind. When I did some research on line about the log and plastic method of growing mushrooms, this came up as a great way to grow shiitake mushrooms. One article said there are about 160,000 shiitake mushroom growers in Japan. I also read an article where you can buy a log covered in mushroom plugs and start your own shiitake farm in your backyard.

https://www.sciencedirect.com/science/article/pii/B9780444427472500555
