Prepared CVG Substrate for Mushroom Cultivation The most beginner-friendly bulk substrate in mushroom cultivation — what it is, why it works, and exactly how to prepare it correctly every time. This article is part of the Spores Lab Substrate Preparation pillar. For the complete overview of substrate types, preparation methods, and sterilization principles, start at sporeslab.io/post/substrate-preparation-the-foundation-of-every-successful-grow If you are new to mushroom cu