How long does unopened California chardonnay champagne last?

It's important to clarify that "California chardonnay champagne" is not technically correct.

Champagne can only come from the Champagne region of France.

Sparkling wine, on the other hand, can be made anywhere in the world and often use Chardonnay grapes.

Here's what you need to know about the shelf life of unopened sparkling wine:

* Properly Stored: An unopened bottle of good quality sparkling wine, stored properly in a cool, dark place, can last 3-5 years.

* Lower-Quality Wine: Lower-quality sparkling wines may only last 1-2 years before the flavors start to fade.

* After Opening: Once opened, sparkling wine should be consumed within 1-2 days.

Here's why storage matters:

* Temperature: Heat can cause the wine to deteriorate faster. Aim for a cool, dark place around 55°F.

* Light: Exposure to light can also negatively impact the wine's flavor.

* Position: Store the bottle on its side to keep the cork moist and prevent oxidation.

Important Note: While the shelf life is a guide, the best way to determine if your wine is still good is to check its appearance and smell. If it has a cloudy appearance, an off-putting smell, or a dull, oxidized flavor, it's probably best to discard it.