Is metabisulfito de potasio vegan?

Metabisulfito de potasio, also known as potassium metabisulfite, is a food ingredient commonly used as a preservative, antioxidant, and bleaching agent. It is a white crystalline powder with a slightly sulfurous odor and a bitter taste. It is highly soluble in water and forms sulfur dioxide gas when mixed with acid, which can help prevent bacterial growth and oxidation in food. Potassium metabisulfite is often used in the production of wine, beer, and other fermented beverages, as well as in dried fruits and vegetables, meat products, and baked goods. However, it should be used with caution, as it can cause allergic reactions in some people and can be harmful if ingested in large quantities.