Food Product Chilling/Freezing or Coil Defrosting/Dehumidifying

The low acute oral toxicity of DOWFROST™, DOWCAL™ N, and DOWCAL 20 propylene glycol-based fluids and the moderate acute oral toxicity of DOWTHERM™ SR-1 and DOWCAL 10 ethylene glycol-based fluids make them highly useful fluids in many food industry applications. Selection of the proper glycol-based fluid in food processing applications depends largely on government regulatory requirements.

NSF International has processed the application for Registration of DOWFROST heat transfer fluid to the NSF Registration Guidelines for Proprietary Substances and Nonfood Compounds (2003), which are available at The NSF Nonfood Compounds Registration Program is a continuation of the USDA product approval and listing program, which is based on meeting regulatory requirements including FDA 21 CFR for appropriate use, ingredient and labeling.

DOWFROST fluid is the fluid of choice for immersion freezing of wrapped meat or poultry products in food processing plants operated under U.S. federal inspection. DOWFROST heat transfer fluid is registered with the NSF Nonfood Compounds Registration Program which is a continuation of the USDA product approval and listing program. A supporting letter from Dow is available upon request. The ingredients in DOWFROST and DOWCAL N fluids are Generally Recognized As Safe (GRAS) by the U.S. Food and Drug Administration (FDA)1 DOWFROST and DOWCAL N fluids are also used in chilling or freezing applications where incidental fluid contact with food or beverage products is possible.

Both DOWFROST and DOWTHERM SR-1 fluids are listed as chemically acceptable by the U.S.D.A.1 for defrosting refrigeration coils in establishments operating under the U.S. federal meat and poultry products inspection program. The compounds must be used in a manner that prevents direct or indirect contamination of edible products.

1 You may need to comply with similar or additional legislation in other countries. Contact your Dow representative for information for products that will comply with local legislation or regulations.