Apple cider vinegar does not technically expire, but its quality may decline over time depending on storage conditions. It is a self-preserving pantry staple due to its acidic nature and antimicrobial properties. A sealed bottle of apple cider vinegar can last indefinitely on your shelf, but exposure to oxygen, which happens each time you open the bottle, can change the vinegars taste and appearance over time. Over time, oxygenation can cause the release of citric acid and sulfur dioxide, two preservatives in vinegar, which could affect how it tastes or contributes to a recipe, but these changes don’t significantly affect the nutritional value or shelf life of apple cider vinegar.
Here are some key points to keep in mind:
- Storage: Store apple cider vinegar in a cool, dark place to help preserve its quality.
- Appearance: As vinegar ages, it may undergo aesthetic changes, such as becoming hazy or separating. You may also notice cloudy sediments or fibers at the bottom of the bottle. This is largely due to exposure to oxygen, which happens every time you open the lid.
- Smell and taste: Before using apple cider vinegar that you’ve had for a while, you can smell and even taste it to make sure it’ll still work well in your recipe.
- Best by date: Expiration dates on apple cider vinegar are usually listed between 2-5 years from when the vinegar was made, but you can consume or use it beyond that.
