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Food-grade lubricants are mainly formulated from base oils and additives. Since food-grade lubricants are mainly used in the food industry, the requirements for lubricants are very strict. They must not only meet the lubrication of machinery, but also not contaminate products and affect food safety.

First of all, it must have excellent lubrication performance, and secondly, it must comply with relevant food safety regulations before it can be called a food-grade lubricant. The biggest difference between food-grade lubricants and ordinary lubricants is that their components, including base oils and additives, are non-toxic and harmless. They will not contaminate food if they occasionally come into contact with food, and can still ensure food hygiene and safety. Since food-grade lubricants are designed specifically for the working environment of food machinery, such as high/low temperature, high humidity, etc., they generally require very good antioxidant, high and low temperature resistance and anti-emulsification properties. Many domestic small and medium-sized food processing companies, especially those in North China. Many of them mentioned that they would use lard, peanut oil and salad oil to lubricate food machinery when necessary to meet their perceived pollution-free requirements. This is a conceptual error, which may be related to the lack of clear regulations and publicity in China. Not to mention that their lubrication performance is far inferior to that of professional lubricants. When these products are used in high temperature and high humidity environments, they will quickly grow bacteria, become moldy, and produce toxic and harmful substances, thereby contaminating food.

If the chains working in the cold storage of food companies do not have low-temperature resistant chain oil, they will not be able to operate normally because the lubricating oil will freeze. Many food machinery, especially meat processing plants, use a large amount of water to flush the equipment every day. The water splashed on the lubrication points of the equipment is easily absorbed by the additives in ordinary lubricating oil, causing the lubricating oil to emulsify, and then oil production occurs at high temperatures. The product oxidation reaction produces coking, sludge and colloidal substances, which quickly deteriorates the lubricating oil and causes lubrication failure, causing mechanical damage.

In the food production process, food-grade lubricants are required for parts that may come into contact with food. It has been successfully used in food and beverage, brewing, meat and poultry processing, dairy products, baked goods, pet food, sugar, food packaging, medicine, grain processing, aquatic products, tobacco, water plants, etc.

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