making an attempt at the largest oyster grow i've done yet... I just measured out 150 cups of coffee, 100 cups of sawdust, and will be adding 25 cups of gypsum to it, then bringing it up to field capacity, and tossing it in poly-bags, then in the autoclave (i have no way to pasteurize this much substrate at the moment...giant clave will help with sterilization though, i can do it all in one run). I plan on doing a spawn transfer from rye grain, i already have 20 jars fully colonized, ready to go. Wish me luck! this sounds like a good sub, an does anyone have any advice?