Whole garlic cloves provide a milder, more subtle garlic flavor, ideal for infusing oils or adding to slow-cooked dishes. Crushed garlic releases more allicin, resulting in a stronger, more pungent garlic flavor, best for dishes where garlic is a prominent ingredient.
The difference between using whole and crushed garlic lies primarily in the intensity of the garlic flavor imparted to a dish. This difference stems from how allicin, the compound responsible for garlic's characteristic flavor and aroma, is released.
Whole Garlic: When garlic cloves are used whole, the cell walls remain largely intact. This means that the enzymes that produce allicin are released more slowly and in smaller quantities. As a result, the flavor is milder, sweeter, and more subtle. Whole garlic is often used to infuse oils, stocks, or sauces with a gentle garlic essence. It's also suitable for slow-cooked dishes where a strong garlic flavor might be overpowering. The flavor will develop over time as the garlic slowly cooks and releases its compounds.
Crushed Garlic: Crushing garlic breaks down the cell walls, allowing the enzymes to react more readily and produce a significantly larger amount of allicin. This results in a much stronger, more pungent, and more intense garlic flavor. Crushed garlic is ideal for dishes where you want the garlic to be a prominent flavor component, such as garlic bread, stir-fries, or sauces where the garlic flavor needs to stand out. The flavor is released quickly, so it's important to monitor the cooking time to prevent the garlic from burning, which can result in a bitter taste.
For a milder garlic flavor from crushed garlic, add it later in the cooking process. Adding it at the beginning will result in a much stronger, more pronounced garlic taste.