The Journal of Industry and Technology

Industrial Analytical Instrumentation

Euro Technology

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Plant engineering and maintenance

Food grade: a closer inspection

Thermal fluid specialist, Global Heat Transfer has released a white paper analysing the benefits of using food grade thermal fluids in heat transfer systems. The special report includes the results of head-to-head testing of regular and food grade oils carried out by experts at the company. Food grade thermal fluid essentials is available to download free of charge from the company's website news section.

In the head-to-head experiment, Global Heat Transfer examined 1,223 fluid samples - 280 food grade, 943 non-food grade. The resultant data clearly showed mean and maximum values for carbon residue and TAN (Total Acid Number) were higher for non-food grade fluid than for food grade.

The analysis demonstrated the non-fouling nature of a food grade thermal fluid, making it more sustainable and less costly to use in the long-run.

The white paper also looks at current regulations surrounding chemicals that have the potential to come into close proximity with foodstuffs. Regulatory agencies across the globe recommend food grade thermal fluids in food manufacturing processes and in some cases, it is a mandatory requirement.

It is therefore surprising that the uptake of food grade fluid in the food and beverage industry is still low.

"Food grade thermal fluids are odourless, non-irritating and non-toxic, to ensure consumer safety in the event of a leak or spillage," explained Clive Jones, managing director of Global Heat Transfer. "However, food processing plants can choose to use regular thermal oil and consequently be forced to scrap all food in the case of a spillage."

"The Global Heat Transfer white paper clearly explains the safety, efficiency, regulatory and economic benefits of using food grade thermal fluid."

The paper, which is available to download free of charge from, provides plant operators and maintenance managers with an insightfullook into thermal fluids in the food and beverage industry.

Global Heat Transfer in profile
Global Heat Transfer is a thermal fluid specialist, providing heat transfer engineering assistance and thermal fluid supplies. Services offered include sampling and analysis, 24 hour delivery of premium quality thermal fluids, system drain down / cleaning / waste management, planned maintenance programs and a broad portfolio of affiliated system design and installation services. It is part of the Global Group of companies.

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