Sweet potato is also called cold potato. From the appearance, the skin of sweet potato is light yellow, like a big top, with a faint scent of Chinese herbal medicine. The skin of sweet potato can be peeled off by hand, and the pulp inside is white and can be eaten raw directly. Raw sweet potato is crisp, sweet and full of water. Sweet potato is generally regarded as a fruit and eaten as a vegetable. You can shred rice vinegar, sugar, sesame oil and other cold dishes, which are not only sweet and sour, but also appetizing, clearing away heart fire and quenching thirst, promoting appetite and helping digestion. Sweet potato is rich in water and carbohydrates. Eating sweet potatoes can clean up toxins accumulated in the body, accelerate blood circulation and promote metabolism. Moreover, sweet potato itself tastes sweet and juicy, suitable for eating in hot summer, which can not only relieve summer heat, but also clear liver, remove fire and reduce dryness.