Cooking Tip: Vinegar

Cooks use vinegar to make pickles, deglaze pans, marinate meats, and add tang to vinaigrettes, sauces, and even desserts. Vinegars are made by adding bacteria called Acetobacter aceti to diluted wine, ale or fermented fruits or grains. This creates acetic acid, which gives the liquid a a sour flavor. Unopened, most vinegar will last for about two years in a cool, dark pantry. Once opened, vinegar should be used within three to six months.

But which vinegar should you use? Many cooks prefer old-fashioned white vinegar for pickling. It allows the flavors of your spices and main pickling ingredient to take center stage.

Vinegars add flavor when creating a vinaigrette, so choose something with a little more flavor than the neutral white vinegar. At the very least, use a white wine vinegar. But the flavors and types of specialty vinegars, like balsamic, sherry or raspberry, are as varied and diverse as can be. Cider vinegar is made from apples and is a good choice for fruity vinaigrettes. Balsamic vinegar, sweet, dark and aged in specially treated wooden casks, is one of the most sublime vinegars you can find. Another interesting choice, especially for Asian-flavored vinaigrettes, is rice vinegar, which is made from fermented rice.