Common food additives are

1, preservatives - commonly used sodium benzoate, potassium sorbate, sulfur dioxide, lactic acid and so on. Used in food processing for jams, preserves and so on.

2, antioxidants - similar to preservatives, can extend the shelf life of food. Commonly used are vitamin C, isovitamin C, etc..

3, coloring agents - commonly used synthetic pigments are carmine, amaranth, lemon yellow, indigo and so on.

4, thickeners and stabilizers - can make ice cream and other frozen food for a long time to maintain a soft, loose tissue structure.

5, bulking agent - commonly used bulking agents such as sodium bicarbonate, ammonium bicarbonate, compound bulking agent.

6, sweeteners - commonly used synthetic sweeteners such as sodium saccharin, sweetener.

7, acidulants - commonly used citric acid, tartaric acid, malic acid, lactic acid and so on.

8, whitening agent - Chinese food in the flour allowed to add the maximum dose of 0.06g/kg. China in May 2011 banned benzoyl peroxide as a whitening agent.

9, spices - consumers often eat a variety of flavors of chocolate, the production process is widely used in a variety of spices, so that it has a variety of unique flavor.