Drippy Corn is our sterilized popcorn grain spawn, prepared with added sugar and moisture so it colonizes fast and stays hydrated through the grow. Each 5 lb bag is made fresh in our commercial facility and tested before it ships. Add your own liquid culture (sold separately) through the injection port. Details Fast-colonizing sterilized grain, ready to inoculate out of the box 0.2 micron filter patch for gas exchange without letting contaminants in Self-healing injection port, so no flow hood or still air box is required 3 mil thick bag that resists tears and contamination Works with a wide range of cultivated mushroom varieties How to use Wipe your hands, the front of the bag and the injection port with 70% isopropyl alcohol. Inject your liquid culture through the injection port (port included, culture is not). Keep the bag somewhere dark at 75–80°F and let the bottom layer colonize for about 3 weeks. Gently break up and mix the grain, then compact the contents. Let the mycelium finish colonizing the rest of the bag, about 3 more weeks. Fruit in the bag, or use the spawn to start a monotub or bulk substrate. Why Spore Sorcery? Over 30 years of mycology experience. Every batch is lab-tested, sterilized and vacuum-sealed in thick 3 mil bags, so you start with clean grain and a better chance of a successful grow. Note: This product contains no mushrooms or mushroom culture. It is a sterilized grain growing medium for home mushroom cultivation.