The Redwood Mushroom Supply Sterilized CVG Blend is a ready-to-use bulk substrate composed of coco coir, vermiculite, and gypsum—a classic combination known for its optimal moisture retention, aeration, and structural support. Professionally sterilized and hydrated to field capacity, this substrate is sealed in Sakato grow bags equipped with 0.2-micron filter patches, ensuring a contamination-resistant environment. Suitable for a wide range of mushroom species, it performs reliably in monotubs and in-bag fruiting setups, making it an excellent choice for both novice and experienced cultivators seeking consistent results.