then it goes through a trommel, a machine that grinds the waste. >> this reminds me of willy wonka and chocolate factory. >> the mycelium does what the mycelium does, grow. all you have to do is stunt the growth of the mycelium so it can be sold to corporations like dell computer and other fortune 500 companies. >> i can take this package material and actually bury it in my yard and within a couple of months it will biodegrade and add nu nutrients to the soil. >> they are now developing home insulation. >> welcome to the tiny house. >> so what is the tiny house? >> so our tiny house is both these walls are filled entirely with mushroom insulation. that provides the insulation and the structure of the walls. >> and what was really impressive about these mushroom building materials were their resistance to fire. >> don't try this at home, kids. >> we're going to leave that there and it will keep burning for a while. as you can see, it is not the safest thing to have in your house. and we can keep an open flame on this for a few minutes before i.t. becomes any danger. >> that's amazing. >