Sterile Liquid Culture is key for growing the type of mushrooms you want. To inoculate a mushroom grow bag, or sterile grain bag, you need to inject it with a Liquid Culture Syringe, or Spore Syringe. Liquid Culture can also be used for expanding mushroom spores and mushroom genetics. Turn 1 spore syringe into 100's of liquid culture syringes with our premium Mushroom Liquid Culture Jars and supplies. We rigorously tested our Liquid Culture Recipe to ensure rapid growth in just the first few days.