5. Refrigerated Storage Cooling Equipment
Primarily for condensers, evaporators, compressors, and electrical control systems, as well as an important cost item in the construction of cold storage facilities. The price of refrigeration equipment generally reflects the difference between imported and domestic products, as imported equipment is of higher quality and thus more expensive. Domestic equipment is less costly but may have a gap in insulation, energy efficiency, lifespan, and performance compared to imported models. Therefore, we generally recommend clients opt for branded refrigeration equipment, which offers assurance and ensures more stable performance over time. After-sales issues are almost non-existent, requiring only routine maintenance annually to save on labor costs.
3. Safety Precautions During Construction
Regarding construction, Xiangning Refrigeration always emphasizes that safety is a crucial issue in the construction of cold storage. Even for the installation and construction of small-scale cold storage, building fruit preservation cold storage, safety concerns cannot be overlooked. Safety helmets, construction clothing, protective masks, gloves, and other equipment must be fully equipped; at the same time, due to the special location of small cold storage, attention must also be paid to noise and other construction safety factors during the construction process, such as avoiding peak electricity usage and high-traffic periods.
Technique for preserving longan (lychee) in a refrigerated cold storage:
Utilizing flash-freezing in cold storage to preserve lychees, which involves lowering the core temperature of the lychee fruits to -30°C within an hour using low temperatures, and then storing them in a -18°C cold storage. This method allows for storage for up to a year or longer. Shenzhen's preservation cold storage effectively expands the sales range.
Lychees frozen and stored in a low-temperature cold storage can maintain their skin color for up to 48 hours after leaving the storage, following treatment with a 0.5% citric acid and 0.03% vitamin C solution or a 1% citric acid solution. The fruit preserves its original appearance and flavor, suitable for produce preservation cold storage, with minimal nutritional loss. The drawback is that cracking may occur once the fruit is exposed to room temperature after being removed from storage.
If you require only short-term storage, the general preservation cold storage can maintain freshness at a temperature of 2 ~ 3°C and a relative humidity of 90% ~ 95% for 10 ~ 15 days.
