The process of making canned sardines is not complicated, but it does require fine craftsmanship and strict quality control. First, fresh sardines are carefully selected to remove impurities and substandard fish. They are then cleaned and cut to certain specifications or canned whole. During the canning process, appropriate amounts of cooking oil, salt and other seasonings are also added to enhance the taste and flavor of the canned goods. Finally, after high temperature and pressure sterilization, the canned sardines can be preserved in an airtight environment for a long time without losing their original freshness.

Fish is rich in high-quality protein, which helps maintain healthy muscles, bones and skin. Although canned fish contains some fat, most of it is unsaturated, which helps to lower blood cholesterol levels and prevent cardiovascular disease. Canned fish is also rich in vitamins A, D, and E, as well as minerals such as calcium, phosphorus, and iron, which are essential for the health of vision, bones, and the nervous system.