On One Hand: Buying and storing champagne in advance is finePurchasing champagne up to several months in advance of a wedding is perfectly fine and will in no way affect the taste and consistency of the bubbly. To preserve the bottles after purchase, be sure to store them in a temperature-controlled wine cellar. If you do not have access to a wine cellar, any dark, cool (around 60 degrees Fahrenheit), dry area will also serve the same purpose. You should also store the bottles upright and leave them undisturbed until you plan to use them.On the Other: Don’t hold on to champagne for too longIn most cases, champagne is meant to be consumed young. It is not meant to sit for 10 years or more like other wines and saved for its vintage.