The DL-6CYL-800 automatic tea cake pressing machine is applicable for pressing ball type tea, round tea cakes and square tea cakes. Its production capacity is 800-1000 pieces per hour. The sizes of tea cakes that this machine can produce are as follows: square tea cakes (25-40 mm), round tea cakes (25-45 mm), and ball type tea (27-35 mm).
Oolong Tea Rolling Machine specializes in tea rolling and shaping. With precise pressure control, it releases tea juice, enhances aroma, ensures stable quality, and suits green tea, oolong tea, etc.—a top choice for tea enterprises.
DL-CRQ-20Z CTC black tea HRS Gyrovane rotorvane machine mainly used for processing CTC black tea.
The Multi-Function Ride On Type Tea Harvester is a high-performance tool for commercial tea gardens. Featuring ride-on operation, adjustable picking parameters, and integrated collection/sorting, it replaces manual picking to save labor significantly. With 5-10x higher efficiency (0.3-0.8 ha/h) and precision plucking that preserves tea quality, it’s ideal for modern large-scale tea production.
DL-6CHL-CY30 belt type tea dryer use diesel heating, also can use gas heating, drying area 20m2, capacity 105kg per hour, click the photo to learn more details about our drying machine.
Pyramid/Triangle Tea Bag Filling Packaging Machine is widely applicable in tea processing plants, food and beverage companies, health product manufacturers, and OEM/ODM tea brands. It is suitable for packaging various teas, including loose-leaf tea, herbal tea, scented tea, functional tea, and instant tea, making it an essential equipment for upgrading the tea packaging process in both domestic and international markets.
Square Tray DL-6CH-6QB is a square tray baking cabinet-style Tea leaf baking machine, featuring stable temperature control, uniform heating, ideal for batch tea processing with efficient performance.
DL-6CFJ-20 used for black tea and dark tea processing, through the intelligent control of temperature and humidity, let tea oxidation fermentation to the best quality, machine has 5pcs stainless steel tray, capacity 60 kg per batch.
Quanzhou Deli Agricultural Machinery showcases its new matcha stone mill series (Black Gold, Bluestone, and ball mill models) at the 2026 Xiamen Tea Expo, earning high praise from global tea industry professionals.
Discover technical solutions for uneven moisture in tea drying. Learn how to troubleshoot airflow, calibrate sensors, and optimize batch loads for perfect tea processing.
Discover the art and science of tea rolling. Learn about different rolling classifications, techniques to improve tea quality and efficiency, and the best tea rolling machines for your production.
A poorly executed withering process can lead to irreversible defects: red stems, uneven flavor, lost aroma, or low production efficiency. In this guide, we break down the classification of green tea withering methods, share actionable tips to boost both quality and efficiency, and recommend a professional, versatile withering machine for modern tea producers.
Withering is the first process in making black tea. Under normal climatic conditions, when fresh leaves are thinly spread for a period of time, water evaporates mainly. With the extension of the withering time, the self-extraction and decomposition of the contents of the fresh leaves gradually strengthened. With the continuous loss of fresh leaf water, the leaves gradually shrink, the leaf quality changes from hard to soft, and the leaf color changes from bright green to dark green. At the same time, the endoplasm changes and the fragrance also changes. This process is called withering.
The withering process is the physical change of withering on the one hand, and the chemical change of withering on the other hand. These two changes are interrelated and restrict each other. Physical changes can not only promote chemical changes, but also inhibit chemical changes, and even affect the products of chemical changes. Anyway, chemical changes also affect the progress of physical changes. The development and mutual influence between the two vary greatly depending on the external conditions such as temperature and humidity.
The external conditions that affect withering are firstly water evaporation, secondly temperature, and again the length of time. Among them, temperature has the most significant effect on the quality of withered leaves. When using the tea withering machine to wither, it is advisable to adopt the operating principles of “large first and then small” and temperature “first high and then low”. Master a certain amount of time to achieve the required degree of withering.
