How long does unopened don perignon champagne last?

Here are some tips for storing champagne for optimal aging:

* Store in a cool, dark place: Ideal temperature is around 50°F (10°C).

* Avoid direct sunlight and vibrations: These can damage the champagne.

* Store on its side: This keeps the cork moist and prevents it from drying out.

* Keep the bottle sealed: Do not open it until you are ready to drink it.

Note: While Dom Pérignon champagne can age well, it is not guaranteed to improve with time. The quality of the champagne will depend on the vintage and storage conditions.

It's important to remember that champagne is a living product, and it will eventually start to deteriorate. Even properly stored champagne will eventually lose its freshness and flavor.