Create perfect high-contrast, detoxified media plates with Shroomage Activated Charcoal. This 100g bottle contains finely milled, Food Grade, and Kosher Certified charcoal powder. Ideal for advanced mushroom cultivation, it absorbs impurities and provides a dark background to easily monitor bright white mycelium growth. Perfect for your preferred agar formulations, whether you're mixing MYPA, MECA, or a custom blend. Usage: Add 1-2 grams per 500ml of agar solution before sterilization.