Food Grade GlycolFor Food & Beverage Processing

Hydratech manufactures Coolflow USP which is classified as non-toxic, food grade and suitable for use in food and beverage cooling systems.

The difference in classification between food grade and food safe is often misunderstood, especially when applied to process cooling fluids.

In basic terms; only Pharmaceutical Grade Mono-Propylene Glycol stored in 'certified sterilised' containers can be classified as food grade. If corrosion, scale and biological inhibitors are mixed with PG-MPG, or if the cooling system pipe-work is not 'certified sterilised' then the food grade classification becomes null and void. Hence 99% of food and beverage cooling systems use a food safe coolant, rather than a food grade coolant.

Food Grade Glycol drums
Food Grade Glycol drums

Coolflow DTX Coolflow DTX


High Efficiency Non Toxic Antifreeze and Secondary Refrigerant for process cooling & AC systems. Based on Ethylene Glycol blended with patented DeTox™ additive and ASTM D1384 proven Corrosion, Scale and Biological Inhibitors.

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  • Summary - Rating: ASuitable for food & beverage process cooling and other applications where a non-toxic classification is preferred. High efficiency and more cost effective than MPG based coolants.

  • Efficiency - Rating: BHigh thermal conductivity and low viscosity at sub-zero temperatures, results in increased heat transfer efficiency and reduced energy demands.

  • Antifreeze - Rating: AProvides protection down to -50°C and lower concentration (% volume) is required to achieve the same freeze-point protection, when compared with NTP, USP, ECO2 and ECO3.

  • Corrosion Control - Rating: ALong-Life formulation with synergistic corrosion inhibitors to exceed BS6580 and ASTM D1384 standards. Also contains broad-spectrum biological inhibitors and polyacrylates to prevent scale precipitation.

  • Toxicity - Rating: AClassified as Non-Toxic and Food-Safe. Suitable for food & beverage processing systems and where low-toxicity is stipulated. LD50 Oral Rat >20,000mg/kg body weight.

  • Density:1.04 - 1.15 g/cm³ depending on inhibitors

  • pH:7.5 - 9.0 depending on inhibitors

  • Boiling Point:>100°C

  • Characteristics:a clear, slightly viscous liquid. It is mildly sweet to the taste and has a non-pungent but characteristic aroma

  • Available in: 5, 10, 15, 20, 25, 205 & 1000 litre containers and bulk tankers.

Frost Protection °C

v/v of Coolflow DTX %

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