Is the rustproof cover safe?

With the continuous progress of the economic society and the continuous diversification of people’s dietary culture, food safety has increasingly become one of the hot topics of concern: “melamine milk powder”, “lean meat ham”, “Taiwan plasticizer”, etc. Every time a food safety incident impacts the survival and development of the industry, it leads the consumer's dietary tendencies and food-eating nerves. So, as a beer and cola and other beverage packaging industry in recent years, the newly developed rust-proof crown cap, its food safety status and prospects? How should we control and improve our food safety?

The crown caps used for glass bottle packaging of beer beverages are formed by stamping and stamping of flat iron sheets. The mouths of the bottle caps are “naked iron” without any protective layer. During storage and packaging, the crown is exposed to high humidity. Or water will cause a rusting headache. To solve this problem, rust-proof caps have been developed on the market in recent years. The principle is that the bottle caps are directly coated with rust-proof oil on their incisions after molding. Through the natural curing at room temperature or UV curing to form a rust-proof protective film, the “naked iron” at the cut portion of the cap is isolated from the outside air, making it less susceptible to rust during later use, handling, storage, and transportation. The rust-proof bottle cap also solves some food safety hazards while solving the rust problem of the crown cap cut. First of all, due to the limitation of the special processing technology of the cap, the incision rust-proof oil is not cured at high temperatures in the drying room. The benzene, alcohol, and ether high-boiling point organic solvents in the rust preventive oil must not be quickly and fully volatilized. The cover-rolled rust preventive oil cannot fully comply with the national standard GB9685-2008 "Hygienic Standards for Additives for Food Containers and Packaging Materials" and European Union (EU) No 10/2011, (EC) No 2023/2006 and other food safety regulations. Secondly, the relatively closed packaging of the crown cap leads to the benzene, alcohol, and ether high-boiling organic solvents that continuously evaporate during storage, which will absorb or infiltrate into the gasket material inside the crown cap. The crown cap is used for food packaging. Afterwards, toxic and hazardous solvents absorbed in the gaskets inside the caps will migrate into the packaged foods, causing food safety risks. Third, crown caps inevitably have collisions between caps during storage, transportation, and filling, resulting in a small amount of coating film on the edge of caps and incisions, and some of the coating debris will adhere due to electrostatic effects. On the inner surface of the cap, it finally enters the packaged food. In the cut rust preventive oils, residues of organic solvents forbidden for use in food packaging materials, such as benzenes, alcohols, ethers, etc., will enter beer and beverages and foods through this channel and endanger human health. Therefore, we should be cautious in using rust-proof bottle caps, according to GB9685-2008 "food containers, packaging materials with additives hygienic standard" requirements strict detection of organic solvent residues in incision rust film, a reasonable assessment of the ordinary crown cap cut rust problems and prevention The food safety risks of rust crown caps are conducive to avoiding harm and avoid food safety incidents.

In summary, the food safety control involved in the small crown cap is also a great article

of. As a manufacturer of crown caps, only from the immediate needs of customers and consumers, the responsibility of packaging food safety as their responsibility, can fundamentally solve the bottle cap food safety and ensure the safety of packaged foods.