Expiration & Storage Tips
When does white vinegar expire?
White vinegar is incredibly long-lasting and actually doesn't have a precise expiration date. Unopened, it can last indefinitely. Once opened, it still remains potent and safe to use for years. Homemade or packaged, the acetous power of white vinegar doesn't lose its punch for a very long time, so you don't need to worry about disposing of it quickly. Also, it's not common to freeze vinegar, and there's no need to, considering its incredibly long shelf life.
How do you tell if white vinegar is bad?
While white vinegar has an indefinite shelf life, its quality can diminish over time, especially when improperly stored. Signs of degradation are mostly visible changes like the presence of a cloudy substance or sediment at the bottom of the bottle. This doesn't mean the vinegar is bad, but rather that it's lost some of its quality and may not taste as sharp. If the vinegar has a strange smell that's off-putting or has changed color, it's best to throw it out and get a new bottle.
Tips for storing white vinegar to extend shelf life
• Always keep your vinegar in a cool, dark place. The pantry is a great choice.
• Always tightly close the cap or cork after each use to prevent air from entering the bottle which can speed up the degradation process.
• Though white vinegar doesn't need refrigeration, you can store it in the fridge to extend its shelf life even further. This is particularly helpful if you live in a hot climate.
• If your vinegar forms sediment or 'mother of vinegar', you can filter it through a coffee filter or cheesecloth and continue to use it as normal.
• White vinegar should be stored in a glass container as it can corrode metal and plastic over time. This will also help to preserve its sharp, clean flavor.