Can be use as a soup base for tomatoes and vegetable. Materials and Practice (2-3 people): Cut two tomatoes into pieces, a few celery (for fragrance, at will), half a carrot with a grill, half an onion with a block, half a broccoli with a large piece and a green apple with pedicels and seeds removed. After about an hour, remove the soup residue and discard it. If you like vegetables in the soup, you can add tomatoes, broccoli, mushrooms and so on. It can be used as rice noodle soup base, vegetable stock and other vegetarian dishes.