For Champagne & Sparkling Wine:

The procedure is very simple. First, pour the Champagne. Then place a valved
stopper equipped with safety clip onto the bottle. A gentle upward motion on the
Le Verre de Vin pressure nozzle injects a metered head pressure of carbon
dioxide into the bottle. The lighting sequence of amber to green on the system indicates the bottle is perfectly sealed and ready for up to 21 days to ensure your
customers the best quality, every time. Here's how it works for still wine...