Chopping garlic results in larger, uneven pieces, while mincing creates very fine, uniform pieces, releasing more of its pungent flavor.
The primary difference between chopping and mincing garlic lies in the size and uniformity of the final pieces. Chopping involves cutting the garlic into relatively larger, irregular pieces. This method is suitable when you want a more subtle garlic flavor and visible pieces in your dish. The cell walls of the garlic are less disrupted, resulting in a milder taste.
Mincing, on the other hand, involves cutting the garlic into extremely small, uniform pieces. This can be achieved using a garlic press, a microplane, or by finely dicing with a knife. Mincing ruptures more of the garlic's cells, releasing a higher concentration of allicin, the compound responsible for garlic's strong, pungent flavor. This method is ideal when you want a more intense garlic flavor to permeate your dish.
To prevent garlic from burning when sautéing, add it towards the end of the cooking process. Burnt garlic becomes bitter and can ruin the flavor of your dish.