These are campden tablets (Potassium Met bisulfite).

Potassium Metabisulfite, (often referred to as "SO2", "sulfites" "meta", or "meta-bi") has several uses in winemaking. At the crush, sulfites are generally used to help control the spoilage bacteria and indigenous yeast that may already be present both on the fruit and in the winery (i.e. on the pic...

Commonly used in home brewing and wine making as a preservative and antioxidant, as well as sanitizer.

Potassium sorbate is used to inhibit molds and yeasts in many foods, such as cheese, wine, yogurt, dried meats, apple cider and baked goods. It can also be found in the ingredients list of many dried fruit products. In addition, herbal dietary supplement products generally contain potassium sorbate,...

Ingredients: Kiwi (kiwi, sugar, sulfur dioxide, citric acid, blue fcf, tartrazine) Strawberries (strawberries, cane sugar, calcium chloride, citric acid, artificial strawberry flavor, sodium metabisulfite). **Good Manufacturing Practices are used to sequence ingredients in our production facility th...