Easy $0.25 Agar Plates for Mushrooms (No Lab Needed!)

Agar plates are a fundamental tool for at-home mushroom cultivation. This method allows for the creation of nutrient-rich growth surfaces - essential for mycelial isolation through sectoring, genetic cloning, or checking for culture contamination - using just two ingredients, condiment cups, and a pressure cooker. By pouring and sterilizing the medium yourself using accessible components, you can bypass the need for expensive lab setups and reduce long-term costs significantly. Once the mixture is prepared and sterilized, the plates are filled inside a still-air box and can be refrigerated for long-term storage or used immediately for experiments.