Systems (200) and methods (800) for causing certain operations to be performed by a Vacuum Packaging Appliance (“VPA”). The methods comprising: detecting when container material is at least partially disposed within a transparent vacuum chamber of the VPA using a proximity sensor mechanism; communicating a signal from the proximity sensor mechanism to an electronic circuit of the VPA in response to the detection of the container material within the vacuum chamber; and triggering a performance of a first operation by the VPA in response to the reception of the signal by the electronic circuit. The first operation is selected from the group comprising mechanical clamping operations to clamp the container material in position, vacuum operations to extract fluid from within a container defined by the container material, and heat sealing operations to create a heat seal along an open end of the container.