What to look for
Filtered vinegar is clear; unfiltered vinegar may contain harmless sediment. For safe preserving, use the acidity specified by a tested recipe.
Store it thoughtfully
Keep tightly capped at room temperature away from sunlight. Cloudiness can be normal, but discard it if contaminated by food or an unclean utensil.
How to use it
Add a teaspoon at a time to a finished savory dish, then stir and taste. For vinaigrette, combine with mustard and seasoning before whisking in oil.
When you need a substitute
White wine vinegar is cleaner and less fruity; lemon juice tastes fresher but has different acidity. Preservation recipes require tested substitutions.
A common pitfallPouring vinegar directly over hot dairy can curdle it; temper or follow the recipe’s sequence.
Substitutions change flavor, texture, and sometimes safety or structure. Check the recipe and product labels, especially for dietary needs.