Why You Should Never Use Industrial Oil Purifiers for Edible Oil

Using an industrial oil purifier to filter cooking oil is strictly unsafe and should never be attempted. Here’s why:

 1. Industrial Oil Purifiers Are Not Designed for Food

Industrial oil purifiers are built for lubricating oil, hydraulic oil, and transformer oil—not edible oil.

They do not meet food-grade hygiene standards and may release harmful chemicals or metals into the oil.

 2. Extremely High Risk of Contamination

Inside an industrial purifier, residues such as:

 heavy metals

 chemical additives

 industrial pollutants

can remain in pipelines and filter elements. These contaminants can migrate into edible oil and pose serious health risks.

 3. Non-Food-Grade Filtration Materials

Industrial filter cartridges and adhesives are not food-safe.

They cannot remove food-related hazards such as aflatoxin, peroxides, or free fatty acids, and may introduce toxins of their own.

 4. Food Safety Laws Prohibit It

Most countries—China included—ban the use of industrial equipment for any food processing. Violations can result in severe legal penalties.

 What You Should Use Instead

 ✔ Food-grade cooking oil purifiers or kitchen oil filtration carts

All materials meet food-contact standards (e.g., 304/316L stainless steel).

 ✔ Simple home filtration (for small volumes)

Use fine gauze, filter paper, or coffee filters to remove residue. This only clarifies the oil—it does not restore its quality.

 ✔ Best practice: ｒｅｐｌａｃｅ oil regularly

High-temperature use causes oxidation and harmful compounds. No filtration can make old frying oil “like new.”

 Conclusion

Industrial oil purifiers and edible oil processing belong to completely separate safety categories.

For your health, never use non-food-grade equipment on cooking oil. Always choose dedicated, certified food-grade solutions.