What to consider before serving an old bottle of champagne that could fall a little flat.

There are occasions when nothing but alittle bubbly will do.

We may not always be as prepared for them as we would like.

Ice Bucket with Champagne and Coup Glasses on Sideboard

Credit: Laurey W. Glenn; Styling: Turner Carroll

But then again, it may not be quite so nice.

Before you get down to the business of uncorking, it’s important to consider some key information.

How Long Do Refrigerated, Open Bottles Of Champagne Last?

The short answer: not long.

(But honestly, only serve analready-open bottle of wineto your celebrant as a last resort.)

How Long Does Unopened Champagne Last?

A “non-vintage” Champagne may only last about three to four years.

Of course, there areexceptions to these rules.

What’s the proper way to store unopened bottles, you ask?

Ideally, find a spot that is dark, cool (50 degrees or so), and humid.

How Do I Know If Champagne Has Gone Bad?

If your bubbly has no bubbles, it’s probably past its prime.

Sediment or cloudiness in the bottle are definite signs that your champagne has spoiled.

All of this is very subjective.

What’s “bad” to some is tasty to others.

A sip or two of “bad” Champagne isn’t likely to make you sick.

The worst that can happen here is that you may add a little sourness to an otherwisesweet toast.