Grating garlic or ginger maximizes their surface area, releasing more flavor and aroma into marinades and sauces, and allowing for better distribution and absorption.
When garlic or ginger is grated, its cellular structure is broken down much more thoroughly than when it's minced or chopped. This breakdown releases a higher concentration of flavor compounds, such as allicin in garlic and gingerol in ginger. These compounds are responsible for the characteristic pungent and spicy notes of these ingredients.
The increased surface area also allows for better dispersion of the flavor throughout the marinade or sauce. This ensures that the flavor is evenly distributed and that the other ingredients can effectively absorb the garlic or ginger's essence. In marinades, this enhanced absorption leads to a more flavorful and aromatic final product, as the meat or vegetables are infused with the full potential of the garlic or ginger. In sauces, it creates a more balanced and harmonious flavor profile.
When grating garlic, use a microplane grater. This creates a fine paste that dissolves easily into liquids, preventing clumps and ensuring even flavor distribution. Be careful not to over-grate, as this can release bitter compounds.