20 Ton Flake Ice Machine Fish Pre Cooling

In the process of fish processing, using a 20 ton large flake ice machine for pre cooling and preservation treatment has become the core technology to ensure the quality of aquatic products. This technology not only effectively locks in freshness by rapidly reducing the temperature of the fish body, but also significantly extends the shelf life, achieving full process quality control from fishing to sales terminals.

**Equipment preparation work**
1. * * Equipment operation confirmation * *: Before starting, a comprehensive inspection of the ice making system, condensing device, and water supply unit of the flake ice machine is required to ensure that each module is operating normally and to avoid malfunctions and shutdowns during production.
2. * * Parameter setting optimization * *: Adjust the ice thickness and output settings of the ice maker according to the fish processing needs. When used for pre cooling, it is advisable to use thin and uniform sheet ice to increase the contact area between the ice and the fish body and improve the cooling efficiency.

**Raw material pretreatment**
1. Fish body cleaning and tidying: Thoroughly clean the caught fish to remove surface mucus, blood stains, and other impurities, creating conditions for uniform cooling in the future.
2. * * Classification and grading processing * *: Sort according to differences in fish species, body size, etc., in order to adopt corresponding ice cover ratios and processing times for different characteristics.

**Implementation steps of pre cooling**
1. Layered ice cover operation: Place the processed fish into a pre cooling container, evenly spread ice sheets, ensure that there is ice cover between the fish bodies, and achieve rapid heat exchange through direct contact.
2. * * Dynamic mixing cooling * *: Mechanized mixing can be used during large-scale processing to fully mix fish and ice, shorten the overall cooling time, and is suitable for continuous production scenarios.

**Process temperature control**
During the pre cooling process, it is necessary to continuously monitor the temperature changes at the center of the fish body, with the goal of stabilizing the core temperature within the range of 0-4 ℃. It is recommended to conduct regular sampling and temperature measurement to ensure that the critical temperature for inhibiting microbial activity is reached, thereby extending the shelf life.

**Subsequent processing and storage and transportation**
1. Low temperature transportation of packaging: After pre cooling meets the standard, use insulation materials with suitable moisture permeability for packaging, and promptly move them into a refrigerated warehouse or cold chain transportation equipment to maintain a low temperature environment until delivery.
2. * * Quality Dynamic Monitoring * *: Regularly inspect the freshness indicators of inventory products. If temperature fluctuations or quality changes are found, the storage and transportation conditions should be adjusted immediately to ensure that the finished product quality meets the standards.

The use of a 20 ton large-scale flake ice machine for pre cooling fish not only improves the standardization of the processing flow, but also enhances the market competitiveness of aquatic products through precise temperature control technology. The application of this technology reflects the importance of quality control in modern fisheries and provides reliable guarantees for meeting the market's demand for high-quality aquatic products.

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