Provided is a vacuum packaging machine that can suppress plastic deformation of a heater wire. A vacuum packaging machine according to an embodiment, which holds an opening of a packaging material containing an object to be packaged by upper and lower seal blocks provided in a chamber during vacuum packaging, and seals the opening of the held packaging material by supplying power to a heater wire during a sealing process, A pre-heating step is performed before the sealing step. Figure 5

You do not currently have access to this content.