Nitrite should be used as nitrate. It is added to meat products primarily as a color fixative.Ham.Sausages, hams, and other cured meats contain it.Secondly, it enhances the flavor of the meat.However, the dose must be controlled; otherwise, it may lead to poisoning.

　　Table salt, also known as refined salt, is obtained by chemically removing soluble impurities from underground brine or rock salt water solutions.Saltwater, rock salt water solutions are extracted through groundwater mining and then purified.Common saltis used as the raw material, followed by processes such as evaporation, crystallization, dehydration, drying, and sieving to produce refined salt.SteamEvaporation, crystallization, dehydration, drying, and sieving are involved.