Vinegar and vinaigrettes need to be stored differently to thrive
You don’t necessarily need to be a genius to realize that vinegar is extremely acidic. It’s this quality that actually makes it self-preserving. Due to this, you don’t need to worry about extra preservation. There’s no need to keep your vinegar in the fridge, but you do need to keep your vinaigrettes in the refrigerator.
That’s because vinaigrettes normally contain vegetables and herbs which can spoil if they’re not properly preserved. On the other hand, normal vinegar isn’t filled with things that can spoil. In short, vinegar should be kept in a cool and dark place, while vinaigrettes should be kept in a refrigerator. Why do you think we pickle things to make them last?