Pickled ginger is a sweet, thinly-sliced young ginger, that's been marinated in a solution of sugar and vinegar. It is known as gari, and is served after customers finish eating their sushi. In some places it is also known as sushi ginger. The ones that are commercially prepared are artificially colored in pink dye to promote sales, however, the natural product is typically pale yellow or has a slightly pink hue from the pickling process. It is eaten between sushi meals to help cleanse the palate.