MyCO2 Primary Decomposer

Premium Sterile Substrate

Organic Alder Hardwood chip and sawdust mix

My CO2 Primary Decomposer Substrate (PDS) was developed due to market demand for a premium sterilized substrate customers can use to grow whatever mushroom culture they prefer, without the need to invest in expensive equipment. In addition, My CO2 PDS reduces the learning curve associated with typical aseptic technique required to grow mushrooms without contamination through the application of self healing inoculation ports. Customers can purchase spore or culture syringes from their prefered vendor and perform inoculations without jeopardizing the sterility of the substrate utilizing a little Isopropyl and a lighter.

Primary Decomposers are mushrooms that are the first fungi to begin decomposition of trees and branches in the wild. Popular mushroom varieties that are typically grown on wood based substrates are Oyster Mushrooms, Shiitake Mushrooms, Reishi Mushrooms, Maitake Mushrooms, Turkey Tail Mushrooms, and many many more.


  • Self healing inoculation port
  • Premium Sterilized Alder woodchip / sawdust mix
  • 1 year shelf life
  • usable as passive CO2 generator
  • Grow customer selected mushroom varieties