A friend of mine worked at a wine bar many years ago. He designed and
welded on an adapter for Vacu-Vin stoppers to the tube for a vacuum
cleaner. He then attached a foot pedal to the power line. To pour a glass
of wine just open the bottle or remove the stopper, pour the wine, stopper
the bottle, put the adapter on the stopper and step on the power control.
The excess air was removed from the bottle. I thought it was quite clever.

Fred.