（一）According to system requirements
1. Adapt to working temperature: Food processing temperature varies. For example, mineral heat transfer fluid is usually suitable at 150-200℃ for bread baking; while for fried food, the oil temperature exceeds 180-250℃, and synthetic heat transfer oil has better thermal stability, which can ensure that it will not decompose or oxidize at high temperature and transfer heat stably.
2. Meet pressure conditions: High-pressure systems must use suitable high-performance heat transfer oil to ensure that the performance of the heat transfer oil is stable under pressure fluctuations to prevent it from deteriorating or causing system failure due to pressure.
3. Consider material compatibility: Different equipment has various materials, and it is necessary to avoid reactions between thermal oil and equipment components. For example, some metals may react with heat transfer oil additives, affecting performance and life. When selecting, refer to the equipment instructions or do compatibility tests.
4. Pay attention to thermal stability and life: High-quality thermic fluid has high thermal stability, can maintain performance at high temperatures for a long time, reduce thermal degradation and coking, and extend service life. Large-scale food factories with continuous production have extremely high requirements for the stability of heat transfer oil. Although synthetic HTF is expensive, it can reduce replacement and reduce overall costs.
（二）Pay attention to safety
1. Strictly control toxicity: Food processing is related to health, and low-toxic or non-toxic thermic oil must be used to prevent food contamination and ensure compliance with food safety standards.
2. Pay attention to flash point and auto-ignition point: High flash point heat transfer oil is not easy to volatilize or catch fire at high temperatures. For example, in a frying workshop, heat transfer oil with a flash point much higher than the operating temperature should be selected, and oil temperature and ventilation should be strictly controlled to prevent fire.
3. Meet environmental protection requirements: As environmental protection regulations become stricter, choosing biodegradable and low-environmental-impact heat transfer oil, such as vegetable oil-based heat transfer oil, can reduce pollution and enhance the company's environmental image.
4. Do a good job of cost-benefit analysis: When choosing heat transfer oil, you can't just look at the purchase cost. Mineral type is low in price, but its performance and life are inferior to synthetic type; although synthetic type is expensive, it can reduce energy consumption and maintenance in long-term operation. Enterprises should weigh the cost-effectiveness based on their own situation.
Our heat transfer fluid has obtained NSFH1 certification and can be used as a food-grade product, which will help improve food safety and brand effect, and will play a positive role in guiding and improving food safety and brand safety, which are increasingly concerned by the public and society.
Armcoltherm synthetic food grade heat transfer fluids are 100% synthetic and can be used in food processing applications as well as many other similar industrial applications such as asphalt plants, asphalt furnaces for roofing, concrete tiles and black curing (vulcanization) furnaces to meet the needs of customers in different industries.
