Function: It completely sucks the air out of the bag, then seals and packages it thermally, which helps preserve foods (such as meats, vegetables, and fruits) for longer periods and prevents them from spoiling or changing their taste in the freezer. . How to use: The eight uses are explained: Place the food inside the vacuum bag. Insert the open end of the bag into the sealing channel of the device. Close the device lid tightly on both sides. Make sure to lock the side clips. Press the power button to start the vacuuming and sealing process. Finishing the vacuuming and sealing. Open the safety valve to release pressure. Remove the completely sealed bag, ready for storage.