There are ways to record food in The Book of Food, The Essential Skills of Qi People and The Book of Huainan Jade Food, and these ways can only be made by using food additives, and the dosage is also exquisite. A little more is harmful, and a little less is tasteless, and the food tastes bad.

In fact, the earliest food additive is salt, which is extracted from seawater and widely used in food. Then the additive is invertase, which can be used to make wine, and cinnamon can increase the aroma of food. Later, I found the bittern, excavated it step by step, and found the method of making tofu. Food coloring and nitrite were discovered later.

If you want to store or preserve food, you need to use food additives. Otherwise, you can't guarantee the food's integrity just by keeping it sealed there, so food additives are not necessarily harmful. If you can use food additives properly, food safety accidents will not happen. Among these famous foodies, they are all familiar with the use of additives, and naturally they will not put too much food additives.

But there are also some unscrupulous vendors who want to make money and use food additives excessively. They add additives to what they want to sell, in order to keep it for a longer time and maintain a more fragrant smell, so that customers can buy it. Even if customers don't buy it, they will be able to keep it for a long time. Water-injected meat appeared in ancient times, but we are used to it in today's society. However, the punishment in ancient times was also harsh. Once such behavior was discovered, it was reported to the official, but it was severely punished.

Compared with more food additives now, the types of food additives in ancient times were still limited, and the manufacturing process was much rougher than now. Therefore, ancient food is relatively safe, and not so many vicious people want to kill people.