Our standards for CNG Mushroom certification have been developed in consultation with the experts on our Mushroom Advisory Council. We intend them to be a guide to best practices in ecological production.
Mushroom Standards Guidance on Substrate Materials
Inspection Forms Certification Requirements
Declaration ~ Mushroom Operations 
Water Testing For Mushroom Certification
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Frequently Asked Questions
Why separate standards? Mushrooms are not grown in soil and behave differently than plants. Separate standards were needed to provide more meaningful guidance for production of this distinct type of crop.
What should I avoid if I'd like to get my mushroom operation CNG certified? You'll want to be very careful about your choice of substrate; it can't include byproducts of genetically engineered agricultural crops (like most cottonseed hulls and soy meal). You'll need to have a clean water source, too. Review the standards to see if they're a good fit with your practices, and get in touch if you have any questions.
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