Mushroom Grow Kit (Quick Kit) consists of 2 pre-sterilized mushroom substrates. A one-pound bag of hydrated and sterilized organic rye berries to make your spawn with and a one-pound bag of our horse manure based mushroom substrate to use as your bulk substrate. The rye bag is equal to 1 quart in volume and the bulk substrate is equal to 1.5 quarts in volume. The one-pound bag of sterilized rye berries has a self-healing injection port and a five-micron filter patch on the bag for gas exchange. Simply inoculate your rye bag with 4cc of your favorite gourmet mushroom species culture and shake up the bag. Allow your rye bag to fully colonize in room temperatures. If your inoculation was sterile and successful, your rye bag will be colonized in about 5 to 6 weeks from the time of inoculation. Once your rye bag is fully colonized you will then break up the mycelium in the bag and add the spawn to your bulk substrate bag. Seal the bag and mix. You can allow your substrate to colonize and fruit in the bag or transfer to your preferred vessel for cultivation. The bulk substrate should be allowed 4-6 weeks to fully colonize in room temperatures. Do not incubate over 80 degrees Fahrenheit at any given time. Either bag of substrate can be stored in cool room temperatures for up to 4 months or refrigerated for up to 6 months for storage purposes prior to use. OutGrow® only uses organic ingredients to make our edible mushroom growing kits.