Product Description
The tea microwave enzyme deactivating equipment applies high frequency 2450 MHz microwave energy directly to polar water molecules inside fresh tea leaves, including fresh shoots of green tea, oolong tea, yellow tea and white tea raw materials. These molecules vibrate, rub and collide at an ultra high frequency of 2.45 billion times per second, rapidly converting electromagnetic energy into thermal energy to achieve rapid and uniform enzyme deactivation from inside to outside of tea leaves.
Different from conventional pan firing and roller heating fixation, microwaves deliver excellent penetrative heating, achieving fast and even temperature rise inside tea tissues. It effectively solves typical industry drawbacks of traditional fixation: uneven heating, partial incomplete deactivation of oxidase, burnt leaf edges, red discoloration, uneven aroma and inconsistent quality of processed tea.
During operation, fresh picked tea shoots are evenly distributed on the wear resistant food grade conveyor belt and fed into the multi cascaded chamber microwave tunnel via variable frequency speed regulation. Microwaves penetrate tea leaf tissues for volumetric heating, quickly raising the leaf temperature to passivate polyphenol oxidase, stopping enzymatic oxidation in a short time. A dedicated exhaust dehumidification system promptly evacuates water vapor, completing continuous integrated enzyme deactivation, dehydration and shaping of tea leaves in one process.
The homogeneous microwave thermal field stabilizes tea quality and avoids local overheating induced scorching and burnt odor. It locks chlorophyll, tea polyphenols and aromatic substances, retains bright green color and fresh flavor, greatly improving leaf integrity, color uniformity and stability of finished tea products.
Main Advantages
Internal and External Synchronous Heating, Uniform Enzyme Deactivation Quality
This tea microwave enzyme deactivating equipment adopts volumetric molecular heating rather than conventional surface heating. It realizes simultaneous heating from inside to outside of tea leaves, effectively avoiding incomplete enzyme deactivation, red leaf generation, local scorching and uneven fixation caused by uneven thermal distribution. Tea after fixation features uniform color, intact leaf texture and consistent quality, raising the overall product qualification rate.
Fast & Controllable Heating, Preserve Natural Color and Fresh Aroma
The equipment achieves rapid enzyme deactivation with precise temperature control, fully retaining chlorophyll, amino acids and original aromatic substances of fresh tea. It avoids long time high temperature baking that leads to burnt taste and aroma loss. It is especially suitable for premium green tea, high grade oolong tea and other high value teas requiring bright color and fresh taste.
Intelligent Adjustable Process, Strong Adaptability for Multiple Tea Varieties
Equipped with a PLC intelligent control system, the unit supports stepless adjustment of microwave power, conveyor speed, cavity temperature and exhaust volume. It fits diverse fixation requirements for green tea, oolong tea, yellow tea and different grades of fresh tea shoots. Modular integrated structure ensures stable long time running with convenient daily maintenance and parameter debugging.
Efficient Continuous Production, Clean Processing and Stable Output
Fitted with multi stage microwave shielding and closed food grade tunnel chamber, the equipment reaches ultra low microwave leakage complying with international safety standards. The fully automatic tunnel production line enables non stop unmanned operation, greatly shortening fixation time compared with traditional manual or roller fixation. The clean production environment reduces impurity mixing, and processed tea is less prone to oxidative discoloration, suitable for famous tea factories and export grade tea production.
Equipment Composition
The tea microwave enzyme deactivating equipment adopts a fully automatic tunnel type assembly line structure with food grade anti pollution modular design. It runs steadily, meets tea food hygiene requirements and allows easy maintenance. The complete set consists of multiple core functional systems including feeding, material spreading, microwave enzyme deactivating tunnel, exhaust dehumidification, online temperature monitoring, PLC intelligent control cabinet and automatic discharging. It is well suited for large scale standardized continuous fixation processing of fresh tea leaves.
Application Fields
The tea microwave enzyme deactivating equipment is custom developed for tea planting and tea primary processing industries. It is widely used for continuous microwave enzyme deactivation, preliminary dehydration and color protection of fresh tea shoots. Processed tea maintains bright color, stable texture and fresh natural aroma. It serves tea processing plants, famous tea manufacturers and tea export enterprises.
