The vacuum fresh-keeping hood is different from those vacuum fresh-keeping boxes used in China. It can be said that it can achieve true vacuum fresh-keeping. It can keep food for the longest time. It can be used to preserve pastries, bread, cakes and any other perishable foods, as long as it can fit inside. The use of this vacuum fresh-keeping hood is actually very simple. You just need to press the button on its top, then the air inside will be sucked out, achieving a true vacuum, so your food can be preserved for a much longer time. And it only needs two AA batteries to operate.