Vinegar is often used to flavour salads and tenderize meats. Many types of vinegar are made from fruit or wine (which is made from fruit). You can use apples to make your vinegar.
Things Required:
2 apples, cored
Blender or juicer
2 jars
Directions:
Cut the apples into small pieces, place them in your blender or juicer, and press out the juice. Pour half the juice into one jar, and the other half into the other. Place one jar in the refrigerator. Place the other in a warm place.
Compare the colour and the odour over a period of a week.
This Is What Happens:
Both change, but the juice in the warm place changes much faster-weeks faster! At first you see bubbles and smell alcohol. You may see a thick film forming on top. Then the liquid begins to smell sour.
Science Behind It:
Chemical changes have taken place. Yeasts from the skins of the apple and from the air act on the sugars of the apple juice, producing carbon dioxide and alcohol (“hard” cider). Within the week, bacteria in the cider turn it into vinegar.