Our culture slants are filled and packed into sleeves in our sterile lab environment. Our proprietary nutrient agar mix promotes rapid growth, longevity, and makes viewing a breeze. The addition of wood to the mix allows cultures to be stored for up to 2 years in sub 45F conditions (fridge).
The dark coloration is for contrast to the mycelium, we use organic activated charcoal. The Carbon is partially consumed by the mycelium.
