My daughter and I tried it out. A ¼" sliver off the mushroom she has in the picture lasted about 1 mile or 15 min, so 3 mushrooms will move a spark for about a day; however it catches a spark so easily, I would just star new at each camp sight. It does not work if the mushroom is wet or too moist, dead black rotting ones work best. It also would be a great hand warmer on winter.

My daughter and I tried it out. A 1/4” sliver off the mushroom she has in the picture lasted about 1 mile or 15 min, so 3 mushrooms will move a spark for about a day; however it catches a spark so easily, I would just star new at each camp sight. It does not work if the mushroom is wet or too moist, dead black rotting ones work best. It also would be a great hand warmer on winter.

I walked down through the woods to the old bridge yesterday. Not much up right now and there was frost last night. The Reshi everywhere I find it this year is prolific. Some little fawn mushrooms are here and there scattered on stumps but nothing real yummy yet. I have found a lot of false-morels this year, and the black foots have popped up all over the place. The Oyster mushrooms have not bloomed yet this spring, but I hope they will come soon. Mulch is blooming too found Agrocybe acericola but no wine caps.