Flower glue and fish belly both refer to the same thing, but they are called differently in different fields. Hong Kong people like to call it fish maw gelatin, while Guangzhou calls it fish maw.

The so-called fish belly was recorded in Yao Min's Book more than 600 years ago. Fish belly, that is, the dried fish bladder, should be rich in gum, hence the name. "Compendium of Materia Medica" records: flower glue, tonifying kidney and essence, nourishing tendons and dredging veins. Hua Jiao is rich in protein and gum, which has the functions of nourishing yin, caring skin, tonifying kidney and strengthening body. The waist and knees are sore, and both men and women can eat them often.

Flower glue is the dried product of fish belly. The biggest difference in appearance between gelatin and fish maw is freshness. High-freshness gelatin is fish maw with low freshness.