In the video below, William Padilla-Brown (founder of MycoSymbiotics) walks through the cultivation process of Cordyceps militaris, a mushroom known for its many medicinal properties. He covers proper technique for jar cultivation using a pressure cooker, in addition to cultivation with a rice cooker or Instant Pot.

For both jar and bin cultivation, you will need to start by making a nutrient broth. Nutrient broth is used to hydrate your brown rice, or "matrix" for the mushroom mycelium to grow on. Cordyceps naturally grow on insect larva, so your brown rice and broth substrate will be a nutrient-rich substitute.

Ingredients for nutrient broth:

1 gallon coconut water

10 grams tapioca starch

5 grams magnesium sulfate

10 grams multivitamins (crushed)

19 grams nutritional yeast or soy peptone

11 grams kelp powder

3.5 grams gypsum

Combine dry ingredients: nutritional yeast or soy peptone, tapioca starch, magnesium sulfate, kelp powder, crushed multivitamins, and gypsum, in a mixing bowl. Add coconut water and mix thoroughly. Extra broth can be stored in the fridge for up to one week.