Sodium Metabisulphite

Sodium Metabisulphite is one of the sulfites that can be used as a preservative, antioxidant and bleaching agent in food with the European food additive number. It is the commercially produced salt of sulphurous acid, is a preservative used to extend the shelf life of meat products such as fresh sausages and burgers, even though it can have adverse effects on some people, especially asthmatics. Sodium Metabisulphite is very useful.