Sanyi Spring and De Soy Sauce Introduction
Everyone has heard of Hu-Di oil, which is typically sold only after the main soy sauce has been finished. Hu-Di oil is particularly aromatic and rich, and since its quantity is limited, it is very rare. San Yi Spring and De Soy Sauce Shop, which is a century-old soy sauce factory in Changhua, is famous for producing pure black bean-brewed Hu-Di oil. The Hu-Di oil produced by them, even after being diluted, is still thicker and purer than regular soy sauce. However, due to the next generation no longer working primarily with soy sauce and many of the equipment being damaged over time and by earthquakes, the soy sauce shop currently only produces a small amount of Hu-Di oil. They do, however, open their doors to visitors, providing explanations about the brewing process of Hu-Di oil, transforming the shop into an educational venue for ingredients and achieving important heritage preservation work.

