Answer: Vinegar is a liquid that is used to flavor and preserve food. It is made by putting alcohol through a chemical change called fermentation.
Question: Vinegar is about half acetic acid.
Answer: The vinegar that is sold in supermarkets is only about 4 percent acetic acid. Water and flavorings make up the other 96 percent.
Question: Vinegar adds a sour taste to food.
Answer: Vinegar is used to add a sour taste to foods. Cooks make a sour salad dressing called vinaigrette by mixing vinegar with cooking oil and spices.
Question: Garlic helps ward off mosquitoes.
Answer: Mediterranean gardeners often plant garlic near doorways to keep mosquitoes and other pests away from the rest of the house. Raw garlic is very effective for this, but much less so when it is eaten.
Question: Balsamic vinegar is made of old cheese.
Answer: Though it has a very strong taste, balsamic vinegar is made of concentrated grape must. It is a specialty of the north Italian city of Modena.
Question: Garlic battles methane.
Answer: Garlic can reduce the amount of methane released by humans and livestock. Allicin, the active ingredient in garlic, kills methane-producing bacteria.