If you notice your bag is losing its seal, inspect the bag to see if there are any small pinholes or punctures and also check to ensure that there isn’t too much liquid in the bag. Also check for wrinkles where the bag is sealed. This is a result of poor bag placement in the machine. To ensure that the bag is properly placed over the heater bar, make sure top of bag is placed within the Removable Drip Tray so that the appliance can create a proper seal.