What are the advantages and disadvantages of Chinese cabbage?

It's sultry in the Mid-Autumn Festival, and it's a folk custom of Guangdong people, especially Guangzhou Pearl River Delta. Because dried Chinese cabbage is dried in the sun, Chinese cabbage is famous for its "sweetness" and "drenching". Modern nutrition believes that it contains crude fiber, soluble protein, fatty oil and various vitamins, which can nourish the heart and blood, relieve annoyance and quench thirst; Tofu can nourish yin and benefit qi; Euryale ferox can tonify kidney and solidify essence; Coix seed can strengthen the spleen and eliminate dampness; Jujube can clear the heart and moisten the lungs; Cured duck has a flat head and a sweet and salty taste, which is the "sweet and salty" taste, and it is the thing that nourishes yin, lowers fire and moistens dryness. Chinese medicine also believes that it can nourish yin and stomach, promote diuresis and reduce swelling. Combined into soup, clearing heat and nourishing yin, gathering fire and reducing qi, nourishing brain and benefiting qi. Ingredients: 75g dried Chinese cabbage, 2 pieces of tofu, 25g Gordon Euryale seed, 4 candied dates, 2 dried duck heads and necks, 300g duck meat and 3 slices of ginger. Cooking: all ingredients are washed and soaked, candied dates are pitted and dried oranges are peeled; Fry tofu until it is slightly yellow; Wash duck head and duck meat and cut into pieces. Then put it in a pot with ginger, add 3000 ml of water (about 12 bowl of water), cook with strong fire for about 2 and a half hours, and add appropriate amount of salt. This amount can be used by 3-4 people, and you can pick up dried cabbage and duck head to accompany the meal.