within Taiwan's fishing industry landscape，Donggang Bluefin Tuna Season in Pingtung，is undoubtedly one of the most dramatic golden-season events。each weighing as much as 200 kg、moving at high speed through the ocean「Black Gold」，from the moment it is caught and landed，its market value immediately enters a harsh countdown。
in the market，determine whether the fish can become a premium belly sashimi plate worth tens of thousands，or must be downgraded to ordinary processing ingredients，it is not only the fisher's luck，but the precision of cold-chain control。
one 200 kg bluefin tuna，from catch to auction，temperature is only 4 hours of operating buffer。
Bluefin tuna are apex predators of the ocean，hooking is often accompanied by intense struggle，this can cause the internal muscle temperature of the fish to rise quickly。if cooling is not performed promptly，the fish flesh may develop what is commonly known as「barbecue」quality deterioration，cause the texture to turn sour、dull color。
traditional ice has larger crystals and sharp edges，can easily scratch the delicate skin of bluefin tuna in a rocking vessel，affect integrity and appearance。high-efficiency flake ice machines planned by Deng Liang for fishing vessels and ports，can produce a dense texture、thin flake ice without sharp edges。
flake ice can spread like snow，closely cover the entire 200 kg fish bodies，penetrate gaps around the fish，rapidly remove core heat through a larger contact area，lock the fish condition at optimal just-caught freshness。
At dawn, crowds fill Donggang Fish Market，the temperature gradually rises with the sunlight。bluefin tuna are lined up in the market，undergo strict inspection by buyers。in a fast-moving auction environment，the fish body is exposed to the environment，every minute is a potential weak point in freshness and bacterial control。
buyers look at more than just eye brightness and fish-flesh color，places greater emphasis on maintaining cold conditions around the fish，and whether the ice can reliably maintain low temperature。
in open, high-traffic fish markets，ice that melts too quickly can easily make floors wet and slippery，and gradually reduce cooling performance。industrial-grade tube ice machine planned by Deng Liang，can produce ice with high crystal density、tube-shaped ice with excellent melt resistance。
the hollow cylindrical design balances cooling efficiency with a longer melting time，even in a high-temperature auction environment，can maintain a stable low-temperature barrier for long periods，ensure the bluefin tuna remains in optimal condition before the auction hammer falls，maintain fat luster and product value。
Auction Hammer Falls，the premium market value is finally determined。next comes the final stage：this 200 kg giants，must be transferred to a cold-chain logistics vehicle as quickly as possible，transported to Taipei、Kaohsiung，or even air-shipped to premium restaurants in Japan。
temperature gaps during transfer between logistics vehicles and loading docks，is often the weakest point in a traditional cold chain。if loading/unloading takes too long or hot, humid air enters，may cause fluctuations in fish temperature。
Deng Liang plans complete low-temperature systems for modern cold-chain logistics centers，reduce the chance that logistics vehicles are affected by external hot and humid air during loading and unloading。
paired with a smart monitoring system，the refrigeration unit can adjust operating status according to environmental load，and continuously record temperature changes。through clear temperature records，build from the port、digital trust showing an unbroken cold chain from logistics to the table。
4 hours of operating buffer，are the life-or-death line for bluefin tuna freshness。
Deng Liang is more than a supplier of ice machines and cold-storage equipment，but also a frontline guardian of freshness in the fishing industry。flake-ice coverage from the moment the fishing vessel docks、tube-ice cooling at fish-market auctions，through smart temperature-control monitoring in downstream logistics，Deng Liang provides one-stop system integration，help Taiwan's fisheries and food-processing industries reduce losses、create greater value。
because we deeply understand，what customers entrust to Deng Liang，more than just the temperature of a fish，and also a brand's non-negotiable reputation and commitment。