Our Colonized Grain Jars are expertly prepared with fully colonized mycelium, ready to help you kickstart your mushroom growing journey. Available in a variety of strains, including Pink Oyster, Blue Oyster, Lion's Mane, King Blue, and Black Pearl, each jar is carefully inoculated with high-quality spores to ensure vigorous growth and high yield. Ideal for both beginners and experienced growers, these jars provide a reliable and efficient way to cultivate your own mushrooms. Simply transfer the colonized grains to your chosen substrate and watch your mushrooms thrive!