The word "pumping" in light soy sauce means extraction, which is prepared by pretreatment, koji making, fermentation, oil extraction and heating with soybeans, wheat, salt, etc. as the main raw materials. The light soy sauce is reddish-brown, tastes salty and fresh, and has a strong black bean aroma. Because of its light color, it is often used for seasoning. It is a good partner for home-style st