Category: Vermiculite

Pre-sterilised vermiculite for mushroom growing—ready to use. Choose 1000 ml sterilised vermiculite bags for clean, small-batch workflows, or 100 L bulk vermiculite for high-volume substrate prep. Mycology-grade vermiculite improves moisture retention and aeration, supports even colonisation, stabilises casing layers, and helps maintain microclimates. Perfect for CVG (coir • vermiculite • gypsum), PF Tek rolls, and monotub fruiting. Its low-nutrient, inert structure reduces compaction and makes field-capacity targets easier to hit. Ideal for beginners and advanced growers alike: open, mix, and go. Stock the size that fits your process and enjoy fast UK delivery on vermiculite for mushroom substrates and casings.