First of all, Longli fish are marine fish, and most Longli fish in the domestic market are Vietnamese river fish Basha fish. Fish fillets are treated with polyphosphate, which can be safely eaten by adults within the scope of use, but it is not suitable for children.

Long-term pollution:

Polyphosphate, as a water-retaining agent and quality improver, is widely used in aquatic food processing, which can keep moisture and improve taste, and also improve product productivity. At high mass concentration (0.4 ~ 0.5g/ 100 ml), phosphate will produce metallic astringency. Excessive addition will endanger health and affect the absorption balance of essential elements such as calcium, iron, copper and zinc.