The secret of long-term preservation in trays, vacuum depression and light-proof sealing Once the vacuum rice box is evacuated, it is like being in an environment of tray. The pressure difference between the inside and the outside of the box makes it impossible to open the lid and close it effectively. At the same time, the high pressure environment causes the survival rate of bacteria to decrease. The oxygen content is reduced, and the food can be kept cool in time. Fully automatic vacuum pumping and deflation one-touch There is no need to use a traditional air pump to pump air, which saves time and effort, and also eliminates the problems of lack of air. 'accessories/storage, simple and simple, hands-free. Intelligent constant pressure automatically adjusts oxygen pumping time Oxygen extraction time can be automatically adjusted according to the volume of ingredients in the box until the air pressure equilibrium is reached in the box. At this time, the box is high-density, which can effectively prevent the intrusion of air. humidity and particularities. odor, and avoid insufficient oxygen extraction due to the volume of food is too small inconvenience. The sealed state can not be opened, keep away from mosquito dust and moisture intrusion After vacuuming and pumping in oxygen, there is a difference in air pressure between the inside and outside of the box. You must press the release valve to release the air before opening the lid. Return and leak, and seal immediately. Charging and suction key magnetically mounted seamlessly Bo's vacuum gauge case is charged with magnetic contact, no need to plug and to plug in, light and nimble. Food-grade material storage ABS worry-free and safe entry Bo's vacuum rice box is made of ABS, which is strong and anti-fall, and protect your health. Product capacity 7L Product size 246×246×240mm Product color white Rated power 3w- Rated voltage 5V Including: 1 * vacuum rice bucket