With the Perlage System, opened bottles will retain their original flavors and sparkle indefinitely. Restaurants can now confidently serve grand vintages such as Dom Perignon, Krug, Cristal, Veuve Clicquot and others by the glass without fear of waste, and home consumers can enjoy Champagne any time--not just on special occasions. Perlage is a true preservation system, not simply a cap, cork, stopper, keeper or vacuum gadget.