Teacher Chen Jing mentioned in the live broadcast that the traditional anti-corrosion technology is the five major anti-corrosion preservatives of pepper and ginger.

1. Perilla frutescens is known as a "natural preservative". When making pickles, we like to add perilla leaves and their stems to the pickle jar, which not only has a unique flavor, but also has an antiseptic effect, which can prevent white "salted flowers" from growing in the water.

2. Jiang Shui ginger is a natural food preservative, which can prolong the shelf life of food. Jiang Shui can be made in life to extend the shelf life of food.

3. Propolis has a strong inhibitory and killing effect on viruses, germs and molds, so adding propolis to food is not only an advanced nutrient, but also a natural food additive.

4. Zanthoxylum bungeanum is a cheap food preservative, which can effectively prolong the shelf life of food. In daily life, you can take a proper amount of pepper and soak it in warm water to make pepper water, which can effectively extend the shelf life of food.

5. Strong tea contains a lot of tea polyphenols, which can destroy the cell structure of microorganisms and reduce the activity of microorganisms, thus playing a role in preservation.