1. Talk big about salt and start from the beginning. The salt that each of us ate every day was the first commodity controlled by the state and the main source of [national tax] at that time. [Salt is the first of all flavors] and is a very important substance in people’s life. Once we lack salt, we will not only be unable to eat, but also have poor physical strength and may even get sick. As a matter of fact, the concept of salt is different from that of [salt] in chemistry. This is also the case here. It only refers to salt. The main component of salt is sodium chloride, which also contains potassium, iodine and some trace Read More …