sodium bicarbonate, Sudan red,

1, sodium bicarbonate: a kind of white granular non-edible substance, which is used to increase the weight and volume of food to obtain higher profits. Sodium formaldehyde sulfoxylate is made of industrial raw materials.

2. Sudan red: a red non-edible dye, which is often used to dye food to increase its color.

3. Boric acid and borax: Boric acid and borax are toxic substances and are often used as preservatives and fungicides. Not suitable for food.