Product Chemical or substance Main function
Cake Baking powder Makes cakes rise
Cake Calcium propionate Prevents mould
Cake Vanilla essence Adds flavour
Soft drink Carbon dioxide Creates fizz
Soft drink Citric acid Adds sourness
Soft drink Sodium benzoate Preserves some drinks
Alcoholic drink Yeast Ferments sugar
Alcoholic drink Ethanol Alcohol content
Wine Sulfur dioxide Helps preserve win