5-in-1 vacuum packaging: Vacuum (VAC) button - manual control of the vacuum degree, must be used with the seal button (seal) before sealing. Seal (Seal) button - seal only. Rice (Rice) button - for vacuum sealing of thick packages, slightly longer sealing time. Damp (Wet) button for vacuum sealing of damp foods. Dry button - for vacuum sealing of dry food. Stop (stop) button - ends the process. One-button operation and hands free: This vacuum sealer has 2 modes: manual vacuum seal (Vac and sea