Liquid culture syringes are made in a sterile laboratory using only high quality strains of mycelium from lab cultivated edible mushrooms. This saves you a lot of time as you simply inject the liquid culture mycelium directly into your substrate and healthy mycelium starts spreading quickly. We sell a variety of delicious species that are easy to grow. Gourmet edible mushroom liquid culture syringes are sold in quality BD 10cc syringes along with a 16 gauge 1.5 inch needle. The syringes can be sterilized and reused later for mycology purposes. Liquid cultures should be stored in the refrigerator until ready to use.  If stored in the refrigerator realistically they can last 6 to 12 months. The mycelium will run out of nutriants eventually so liquid cultures do not last years like spores prints do. We guarantee live healthy cultures for at least 60 days after delivery.