oh, i use mine the way they use it for horses - I add water to it and let it expand. The chicks like to eat it out of curiosity, it doesn’t take too long before they realize it’s not tasty though, lol!
I also use mine for coop bedding, it makes clean up soooo much easier!
I know nothing about growing mushrooms. once my mom brought back one of those mushroom growing in a box things... we had mushrooms for weeks. I couldn't look at mushrooms for a while after that, lol.
I put mine in the compost, it breaks down really easily
I’m a big fan of pine pellet bedding (expanded) too!
I lay down about 3in, and then all I need to do is scoop and fluff it up everyday (heck you don’t even need to scoop for a day or two if you’re lazy, just mix it in!). You won’t need to change this out for the duration of the brooding. Grit...