Open, Restricted & Prohibited Foods
Oklahoma divides homemade food products into two regulatory tracks — non-TCS (shelf-stable) and TCS (time/temperature-controlled for safety, meaning perishable). Both are allowed under the HFFA, but with different rules. A small category of products is prohibited entirely.
Understanding the Non-TCS / TCS Divide
Oklahoma's HFFA draws a clear line between two kinds of food: those that are safe at room temperature (non-TCS) and those that require refrigeration or temperature control to prevent bacterial growth (TCS, or Time/Temperature Control for Safety).
The classification depends on science: a product is non-TCS if its pH is at or below 4.6, or its water activity (aw) is at or below 0.85. Below those thresholds, harmful bacteria can't grow fast enough to pose a food safety risk. Above them — and the food requires temperature control to keep it safe.
One of only 8 states that allows TCS foods under cottage food rules
Most states restrict home food sellers to shelf-stable products only. Oklahoma goes further — allowing home sellers to sell perishable foods like cream cakes, fresh pies, and refrigerated products, as long as they complete food safety training and deliver those products directly to buyers themselves.
For borderline products — salsas, pickled vegetables, pies, certain fermented foods — the HFFA doesn't make the call for you. ODAFF recommends sending a product sample to a food testing lab to determine its pH and water activity before selling. The OSU Food and Agricultural Products Center can provide lab referrals at fapc@okstate.edu.
Oklahoma Compliance Checker
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