Product Description
The tea microwave drying equipment applies high frequency 2450 MHz microwave energy directly to polar water molecules inside various tea materials, including green tea, black tea, oolong tea, white tea, scented tea and semi finished tea leaves. 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 uniform inside out dehydration and drying of tea materials.
Different from conventional hot air drying and charcoal baking, microwaves deliver excellent penetrative heating, achieving even temperature rise and consistent moisture removal throughout the tea leaf layer. It effectively solves typical industry drawbacks of traditional tea processing: uneven heating, surface over drying while leaf core remains damp, leaf scorching, aroma loss, color darkening and inconsistent moisture content of finished tea products.
During operation, pre processed tea leaves and semi finished tea materials are evenly distributed on the wear resistant food grade conveyor belt and fed into the multi cascaded chamber microwave drying tunnel via variable frequency speed regulation. Microwaves penetrate the tea leaf layer for volumetric heating, quickly vaporizing internal free and bound water while realizing synchronous sterilization and enzyme deactivation. A dedicated exhaust dehumidification system promptly evacuates water vapor, completing continuous integrated drying, dehydration, sterilization and shaping of tea products in one process.
The homogeneous microwave thermal field stabilizes physicochemical properties of tea and avoids chlorophyll degradation and volatile aroma loss caused by local overheating. It removes residual moisture and volatile impurities, inhibits tea moisture reversion, mildew and oxidative deterioration, and greatly improves leaf integrity, color retention, aroma performance and shelf life of finished tea products.
Main Advantages
1. Internal and External Synchronous Heating, Consistent Drying Quality
This tea microwave drying equipment adopts volumetric molecular heating rather than conventional surface heating. It realizes simultaneous heating from inside to outside of tea leaf materials, effectively eliminating core dampness, local over heating, leaf scorching and uneven moisture caused by uneven thermal distribution. Finished tea features uniform moisture, intact leaf shape and consistent color, raising the overall product qualification rate.
2. Mild Low Temperature Dehydration, Full Retention of Natural Aroma & Color
The equipment performs mild low temperature constant temperature dehydration without destroying tea natural aroma substances, chlorophyll, tea polyphenols and amino acid components. While removing excess moisture, it prevents aroma volatilization, color darkening and quality deterioration induced by high temperature baking. It is especially suitable for high grade green tea, scented tea and heat sensitive premium tea varieties requiring strict color and flavor retention.
3. 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, temperature and exhaust volume. It fits diverse drying requirements for green tea, black tea, oolong tea, white tea, scented tea and tea fragments. Modular integrated structure ensures stable long time running with convenient daily maintenance and parameter debugging.
4. Efficient Continuous Production, Thorough Sterilization and Extended Shelf Life
Fitted with multi stage microwave shielding and a closed food grade drying chamber, the equipment reaches ultra low microwave leakage complying with international safety standards. Microwave treatment realizes synchronous sterilization to suppress mold and harmful microorganism reproduction. The fully automatic tunnel production line enables non stop unmanned operation, greatly shortening drying cycles compared with traditional tea drying processes. Treated tea resists moisture re absorption, oxidation and mildew, extending storage time for domestic tea brands and export grade tea applications.
Equipment Composition
The tea microwave drying 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 drying, exhaust dehumidification, intelligent temperature control and automatic discharging. It is well suited for large scale standardized dehydration and drying of various tea raw materials.
Application Fields
The tea microwave drying equipment is custom developed for tea planting processing, tea manufacturing and scented tea production industries. It is widely used for low temperature drying, dehydration, sterilization and mildew proof treatment of various tea materials. Processed tea shows stable color, uniform moisture and retained natural aroma. It serves tea processing plants, tea factories and tea export enterprises.
