Popcorn Bulk Substrate Jars (12-Pack)

Out Grow Verified independent store

→

Our Popcorn Bulk Substrate Jars (12-Pack) offer a reliable and nutrient-rich substrate for mushroom cultivation. Each pack includes 12 quart-sized jars filled with fully hydrated a nd sterilized popcorn grains, known for their resilience and large surface area, which promotes strong mycelium growth. These jars come equipped with self-healing injection ports, making inoculation easy and contamination-free. Perfect for cultivators looking for a high-performance substrate in a convenient, ready-to-use format. Show more