Tiny pores in the bamboo charcoal can absorb the odor of ammonia produced by the food in the refrigerator, or the smell of ammonia from the fish, and keep the fruit and fish fresh. Can put charcoal in the refrigerator to eliminate the smell of food, keep the food fresh and not spoiled; It can also be put into the rice bowl to prevent the production of sufficient insects and keep the rice bowl dry to ensure the rice quality. In the window, cabinet and piano, can dehumidify, mold, deodorize; It can eliminate the smell of leather rubber oil and other odors in the car. When cooking, the bamboo charcoal can absorb the pesticide residues in white rice, and make the rice soft and not sticky.