Expiration & Storage Tips
When does champagne vinegar expire?
Champagne vinegar, when unopened, can stay good indefinitely as it is a fermented product. However, the quality and flavor may deteriorate over time (typically after 2-3 years), so I'd recommend using it within this timeframe. Once opened, it has a shelf life of about 2 years when stored properly. It can still be used after this, but might not taste as good. If homemade, its quality and flavor would usually last for 1-2 years. Freezing isn't a common or recommended storage method for vinegar as it won't freeze and the temperature change can affect its flavor.
How do you tell if champagne vinegar is bad?
Telling if champagne vinegar has gone bad can be a little tricky, as it won't spoil in a traditional sense. However, signs of degradation can include changes in the color, flavor or smell. If it develops a foggy or cloudy appearance, this could be a sign that bacteria or mold is present - in this case, it's best to play it safe and discard it. Same goes if the vinegar develops an unusually strong, sour or unpleasant smell, or if it does not taste as sharp or clear as it usually does.
Tips for storing champagne vinegar to extend shelf life
• Make sure to always close the cap or lid tightly after each use.
• Store in a cool, dark place like a pantry or cupboard. Warm and bright environments can cause the vinegar to degrade quicker.
• It's best not to transfer the vinegar into another container as this could introduce bacteria.
• If sediment forms at the bottom (which is normal), simply give the bottle a good shake before using.
• You can refrigerate opened vinegar to extend its life, but it's not necessary as vinegar's acidity naturally preserves it.