Add fresh ginger root towards the end of the cooking process, typically in the last 5-10 minutes, to retain its maximum pungency and fresh flavor.
The volatile oils in fresh ginger, which are responsible for its characteristic aroma and spicy flavor, are heat-sensitive. Prolonged cooking can cause these oils to dissipate, resulting in a milder, less vibrant ginger flavor. Therefore, to maximize the pungency and freshness of ginger in your dish, it's best to add it towards the end of the cooking process. This allows the ginger to impart its flavor without being overly subdued by the heat. For stir-fries, add it during the last minute or two. For soups and stews, adding it in the last 5-10 minutes is ideal. This ensures the ginger's flavor remains bright and noticeable.
To further enhance the ginger's flavor, consider grating or mincing it finely. This increases the surface area, allowing more of the volatile oils to be released quickly. Avoid burning the ginger, as this will result in a bitter taste.