Keep your wine fresher, longer with the Alchemi Argon Wine Preserver. Trusted by winemakers and used in the bottling process, argon gas displaces oxygen and creates a protective barrier that prevents oxidation and keeps your wine flavorful for up to 30 days. Quantity: 1 bottle Ingredients: 100% argon gas Capacity: Preserves up to 40 bottles. Directions: Add argon gas to an open wine bottle for 2 seconds, then seal with the cork or a standard bottle stopper. Repeat each time you reopen the bottle. ARGON GAS WINE PRESERVER - Argon gas is the perfect way to keep your wine fresh after opening. No pressure to finish a bottle quickly after opening—with the Argon Wine Preserver, argon can keep an open bottle fresh for up to 30 days. IDEAL FOR RED & WHITE WINES - Argon gas, used by winemakers in the bottle process, prevents excessive oxidation by displacing oxygen. This wine preserver gas keeps your wine flavorful or preserves vermouth for martinis and cocktails.