Pearl river bridge mushroom flavored superior dark soy sauce comes from the later batches of soy sauce procured during the last stages of the brewing process. The pearl river bridge open-air, sunlit fermentation method provides exceptional flavor, color and consistency. Use in stir-fry both in the wok and poured over finished dishes, or as you would as a condiment or dipping sauce. Also works great as a marinade. Note: "dark" soy sauce denotes its color, not its salt content. Chinese chefs commonly choose "light" or "dark" soy sauce depending on the amount of color they want the sauce to impart on the dish.