Fresh ginger juice kicks up the flavor of this dressing. To make ginger juice, wash the fresh ginger root and slice into 1/4 inch slices. Place in a blender and add water until just covered. Puree until smooth. Pour into a fine strainer set over non-reactive container. Press all juice from the pulp. Repeat this procedure, using the same liquid, 2 more times. After the last time, strain through cheesecloth and squeeze the juice from the pulp into a glass container. The juice can be used for tea, dressings or marinades.