I am a great advocate of hand-chopping garlic when I plan to eat it raw On the other hand, if you plant to cook the garlic, the storng odor and taste disappear. One of the most fascinating tests to try is in the peeling: take two cloves of garlic; slam one Chinese style with a knife or cleaver, and cut the other one in half delicately. Smell and taste the difference. Since the Chinese always cook their garlic; it's perfectly ok for them. But the hand chopped garlic that is so often strewn over food needs more delicate handling; otherwise it would overwhelm the food.' to quote food and wine writer Matt Kramer: "garlic is a member of the allium family, all of which contain various amounts of sulfur. However, garlic has its unique properties. A scientific explanation goes as follows: the pungent aroma of garlic is contained in an olorless compoound claled "allin" When the garlic clove is intact, this compound is stable. But when the clove is chopped or crushed it comes in contact with an an enzyme which hangs around in another part of the clove. THis enzyme converts alliin into three parts: ammonia, another sulfur compound, and pyruvic acid (which resembles acetic acid or, in the vernacular of the street, vinegar). It is the sulfur compound which is ultimately responsible for hte characteristic odor of garlic. In short, chopping brings less of the alliin into contact with the enzyme which sets al this into motiuon; crushing creates a more intimate mingling, the result being an unpleasnatly strong garlic flavor and aroma.".