Phu quoc fish sauce waters around The island are rich in seaweed and plankton which provide food for the anchovy population. However, it only since the late 1950s that the product has been recognized outside of its home island, reaching its zenith of popularity between 1965 and 1975. With increasing government subsidies of many industries in the period from 1975 to 1985, the local fish sauce craft lost market share to larger competitors, but in recent years, the popularity of the authentic Phu Quoc product has been rebounding. In 2012, Phu Quoc fish sauce was granted a European Union Protected Designation of Origin (PDO)
Fish ball cuttlefish balls (墨魚丸). Readily available in traditional markets and supermarkets, fish balls are also a popular ingredient for hot pot. White fish balls from traditional fish ball restaurants are made from fresh fish and are normally hand-made (手打) by the owners using traditional techniques. The big golden fish ball is a snack in Cheung Chau. Distinguishing features include size, sauce and texture. They can be fist-sized and are served with a special curry sauce, and are mainly made from fresh fish which makes the texture more smooth. The basic ingredients are fish, flour and flavourings such as salt and sugar,