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How tuna processors are improving profitability with a new sorting technology

Tuna processing is demanding, fiddly, and hugely labor intensive. So many people are involved in removing bones and scales from the fish, and in separating the differing colors and qualities of meat, that the risk of human errors is ever-present. So too are the risks of worker-related foreign materials, such as clothing fibers and strands of hair, falling into the product.


Located in Dandong, China, Zhengrun Food is the leading integrated supplier of seafood products. Domestically they are selling 45,000 tons of fresh seafood and exporting 6,000 tons of frozen seafood products to Japan, the United States, and other countries each year.