Bengdou is a Tianjin specialty food, fried broad beans. It is said that when broad beans are fried, the beans will "jump" when heated, so Tianjin people call them "jumping beans". But in fact, what Tianjin people say and write is "Bengdou". The appearance of the Bengdou is as shiny as tiger skin, swollen and cracked, but does not get sandy or gritty. It is crisp but not hard when chewed. It has a rich five-flavor flavor. When chewed for a long time, it becomes pulp, which is full of fragrance and has a long aftertaste. And contains a variety of nutrients.

Bendou is a Tianjin specialty food, fried broad beans. It is said that when broad beans are fried, the beans will jump when heated, so Tianjin people call them jumping beans. But in fact, people in Tianjin say it is Bengdou, as evidenced by the trademark Bengdou Zhang.

The original name of Tiger-skin Zhengxiang Bendou is "Black-skin Bendou." To make this kind of Bendou, five medicinal ingredients (cinnamon, aniseed, fennel, green onion, salt) and five internal ingredients (licorice, shellfish) are used. (e.g., angelica root, angelica root, schisandra chinensis), as well as chicken, duck, mutton, and Ye Ming Sha Wu, etc. This kind of bean has a black and shiny appearance like tiger skin, is swollen and cracked, but does not get sandy, and is not chewy in the mouth. Crisp but not hard, it has a rich flavor and can be chewed for a long time to form a pulp with a fragrant fragrance and a long aftertaste. It also contains a variety of nutrients, including 29% protein, 47% carbohydrates, calcium, iron, phosphorus, etc., and is low in fat.