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.
Capitalize on the global matcha boom with our new DL-6CYMJ-32 Black Gold Stone Grinder. Featuring a traditional 35cm stone mill and precise low-speed rotation (0-38 rpm), this machine produces ultra-fine ($\le$ 0.15$\mu$m) matcha while preserving vibrant color and rich nutrients. Perfect for high-end tea factories.
Discover the journey of our electric backpack tea harvester from the manufacturing line to your plantation. Learn essential usage tips, safety precautions, and maintenance advice to maximize your harvest efficiency.
Facing labor shortages for the spring tea harvest? Discover Deli Assistant's battery-operated tea harvesting machines. Lightweight, efficient, and gentle on premium tea buds. Boost your yield today.
Need higher output than stone mills? The DL-6QM-40 Stainless Steel Ball Mill delivers industrial capacity (15-40kg/h) at 500-800 mesh ultra-fine quality. Learn how to pair it with a Circular Vibration Sieve for the perfect matcha production line.
1. The effect of temperature on enzymes
There are many enzymes in tea. For example, the presence of polyphenol oxidase can catalyze the oxidation of polyphenols and make the leaves red. If a certain method is used to destroy the activity of polyphenol oxidase, the polyphenols will lose the conditions for the oxidation reaction, so they will not quickly turn red. The "fixation" process in green tea processing is to use high temperature to "Passivation" the activity of enzymes, so that the polyphenols will not be enzymatically oxidized during the subsequent rolling and drying process, thereby maintaining the green leaves of the clear soup.
The purpose of "fixation" is to use high temperature to destroy the oxidase activity, but if it is not handled properly, not only will it not destroy the enzyme activity, but it will increase the enzyme activity, causing red tea leaves and green leaves. It can be seen that the temperature has a duality on the enzyme, that is, it increases the speed of the catalytic reaction. At the same time, the speed of the passivation reaction is also increased under high temperature conditions.
It is irreversible that the enzyme is destroyed by heat, but sometimes the fixation temperature is not high enough, and the enzyme activity is inhibited without being destroyed. After the high temperature is relieved, it will regain vitality, and red stems and green leaves will appear when they are twisted or dried.
