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The global cold chain industry is witnessing a paradigm shift toward micro-climate customization. For high-value, delicate botanical commodities such as fresh-cut flowers and premium tea leaves, traditional industrial refrigeration systems are no longer sufficient. These delicate organisms require a precise balance of low temperature and controlled relative humidity (RH) to prevent decay, wilting, and chemical degradation.
In the floriculture sector, post-harvest losses can escalate to 30-40% without robust temperature management. Fresh flowers continue to transpire and respire after harvest, consuming their own carbohydrate reserves and releasing moisture. If the air cooler is too aggressive, it strips the air of moisture, causing petal burn and stem dehydration. Conversely, excessive humidity without air movement promotes the growth of pathogens like Botrytis cinerea (gray mold).
Similarly, the specialty tea industry relies heavily on climate-controlled aging and storage. Premium leaves, especially green tea, oolong, and aged Pu-erh, are highly hygroscopic. They readily absorb moisture, odors, and undergo rapid oxidation when exposed to fluctuating temperatures and uncontrolled humidity. The integration of a compact air cooler specifically calibrated for these environments has transitioned from a luxury to an operational necessity for growers, distributors, and premium retailers globally.
Fresh-cut flowers (such as roses, lilies, and carnations) require storage temperatures between 1°C and 3°C with a relative humidity level maintained at 85% to 95%. Kewei's compact air coolers utilize a specialized low-velocity fan configuration and optimized fin spacing. This ensures gentle, non-disruptive airflow that prevents physical damage to delicate petals while maintaining high humidity levels, virtually eliminating the risk of condensation droplets forming on the leaves which leads to fungal infections.
During the processing of tea leaves, temperature and humidity dictate the rate of oxidation and fermentation. For long-term storage of green teas, a stable, cold environment (0°C to 5°C) with low humidity (around 50-60% RH) is critical to halt enzymatic activity and preserve the vibrant green color and fresh taste. For Pu-erh aging, a warmer, controlled micro-climate is managed by our smart air coolers to facilitate slow, beneficial microbial fermentation without mold formation.
In the final stages of the supply chain, florists and specialty tea merchants require space-saving cooling units that fit seamlessly into compact display cases or back-room storage vaults. Our compact air coolers are designed with a minimalist footprint and low noise levels, ensuring they can operate continuously in commercial environments without disrupting customer experiences, all while maintaining the exact climate profile needed to protect inventory value.
Kewei Cold integrates advanced thermodynamic engineering to overcome the limitations of standard refrigeration:
Standard cooling units often struggle with temperature fluctuations during defrost cycles, which can trigger stress responses in fresh flowers, causing premature blooming or petal drop. Similarly, sudden temperature shifts in tea warehouses can lead to condensation, ruining entire batches of premium leaves.
Kewei's engineering team has addressed these challenges by designing compact air coolers with variable-speed EC fans and electronic expansion valves. By constantly communicating with localized sensors, the system adjusts its cooling capacity dynamically. This micro-adjustment capability keeps the temperature within a tight ±0.5°C range, preserving the structural integrity of cell walls in fresh flowers and stabilizing the delicate chemical compounds in tea leaves.
Kewei Cold Chain Intelligent Manufacturing Co., Ltd. is located in Danzao, an important town of Intelligent Manufacturing in southern China. The factory has a construction area of more than 40,000 square meters. It integrates design, manufacturing, and service, integrates all kinds of refrigeration products, intelligent software, and cold chain supporting hardware, and realizes a complete cold Chain Intelligent Manufacturing ecology.
Since its establishment in 1998, it has risen rapidly in the refrigeration industry with its professional level and cutting-edge technology in R&D and manufacturing. In 2003, it obtained CE certification and ISO9001 international quality and management system certification; In 2010, a modern chemical plant focusing on the production of refrigeration equipment and other series products was completed, and large amount of money was invested in the construction of several automatic production lines. In 2013, it became the first brand in the refrigeration industry; In 2015, the integrated refrigerator for cold storage was launched; In 2017, it became a cold storage engineering design manufacturer.
A glimpse into our manufacturing prowess and real-world installation projects worldwide, showcasing our dedication to cold chain excellence.
Over the past 25 years, the enterprise has been developing continuously. It is a high-tech unit in Guangdong Province, a private science and technology enterprise in Guangdong Province, a famous trademark in Guangdong Province, and a leading brand in the refrigeration industry. The company's innovative R&D technology, environmental protection and energy-saving product advantages, reasonable market price, and perfect after-sales service have established Kewei as a leader in the industry.
