Those of you who have grown or grow P. Mexicana or similar mushrooms, what's your favorite casing recipe and how do you prepare it (sterilization or pasteurization)?
From what I found most use peat moss with gardening sand, or peat moss and vermiculite (50/50). But I'm finding conflicting reports on how to prepare the casing.
Some say pasteurize to keep the healthy microorganisms alive who the keep trichoderma in check, while others say trichoderma is even added to peat and should be therefore be sterilized.
@DonShadow's "Chamber Tek + Easy Ps. Mexicana Grow Tutorial" for example recommends "sterilized 50/50+ casing".
What's your take on this? How do you do it?