At the beginning of “Ginza Bairin”, founder Mr. Nobukatsu Shibuya was not satisfied with the existing sauce (worcestershire sauce or demi glace sauce), and so he looked for a completely new sauce with the thickness suitable for a pork cutlet.He formulated and developed “Bairin Special Katsu Sauce (thickened worcestershire sauce)” using this experience of being a pharmacist. It has the sweetness from various kinds of fruits and vegetables, such as apples, and onions that makes its a one-of-a-kind sauce.