Cold foods mainly include: wheat, barley, buckwheat, millet, coix seed, tofu, sesame oil, eggplant, radish, lettuce, wax gourd, loofah, spinach, amaranth, celery, grass head, beet, Malantou, wolfberry head, mung bean, mung bean sprout, day lily, mushroom, snake, snail, orange, etc. As the name implies, cool food is partial to Liang Yu, which has a cooling effect. Distinguish whether food is hot or cold: in general, it can be seen from the color, taste, growing environment, geographical location and growing season of food. Foods with sweet and pungent taste are hot because they are exposed to sunlight for a long time, such as garlic, persimmon and pomegranate. And those foods that taste bitter and sour are mostly cold, such as bitter gourd and bitter vegetables. Green plants are close to the ground and absorb moisture from the ground, so they are cold, such as mung beans and green vegetables. Plants with reddish colors, such as pepper, pepper, jujube and pomegranate, grow close to the ground, but their fruits are exposed to sunlight for a long time, so they are hot. The aquatic plants in the growing environment are cold, such as lotus root, kelp and laver. And some foods that grow on land, such as peanuts, potatoes, yam, ginger, etc., are hot because they are buried in the soil for a long time, and the plants are dry-resistant and contain less water. The food growing in the shade facing north absorbs heavy moisture and rarely sees sunlight, so it is cold, such as mushrooms and fungus. And some foods that grow in the sky, or foods in the southeast, such as sunflowers and chestnuts, are hot because they receive enough light and heat. Geographical location: Green plants are close to the ground and absorb moisture from the ground, so they are cold, such as mung beans and green vegetables. Plants with reddish colors, such as pepper, pepper, jujube and pomegranate, grow close to the ground, but their fruits are exposed to sunlight for a long time, so they are hot.