Ostrom's Nothing Adds What Our Mushrooms Add Ostrom's

Ostrom's Quality Assurance Program

At Ostrom's we take pride in our quality assurance program. We want our customers to feel confident that when they purchase any of Ostrom's fine products they receive a safe, fresh, delicious product!

From compost to shipping the finished product, Ostrom's utilizes procedures to comply with established Good Manufacturing Practices (GMP's) and Good Agricultural Practices (GAP's).
  • We operate in full compliance with federal, state, and any other appropriate regulatory law or guidelines.
  • We have a comprehensive Hazard Analysis Critical Control Point (HACCP) plan that requires daily inspections of food processing equipment, as well as personnel hygiene practices.
  • We have monthly inspections of the entire facility.
  • We continually update our employee training to encompass the latest in food safety practices and innovations.
  • In addition to internal food safety audits, we have independent third party audits 2-3 times a year; and we consistently maintain a 'Superior' grading!
Member of the
American Institute of Baking

Frequently Asked Questions:
  1. When I buy mushrooms at the grocery store they sometimes have dirt on them, is that horse or cow manure?
    Mushrooms grow on a layer of peat moss covering a thick layer of pasteurized compost. Usually the flecks of dirt are peat moss. Sometimes, there are bits of compost but the entire growing medium, whether it is compost or peat moss, is pasteurized! Most people do not know that there is an extensive pasteurization process that the growing medium goes through before inoculated with the mushroom spores.

  2. Do mushrooms need to be in the dark to grow?
    No, mushrooms get all their nutrition from the compost substrate. Unlike many plants, they do not need sunlight to make chlorophyll so we turn off the lights to save energy!