Product Description
This tunnel continuous microwave sanitizing system is professional industrial microwave sterilization equipment dedicated to fine tea powder raw materials. Tea powder is rich in delicate aroma compounds and polyphenol active substances, which are highly sensitive to heat. Conventional high-temperature sterilization tends to dissipate tea fragrance and degrade valuable polyphenols. This specialized microwave sanitizer adopts mild dielectric heating technology to realize precise microbial control, preserving the intrinsic functional and sensory quality of tea powder for tea deep processing enterprises.
Microwave radiation interacts with scattered water molecules inside stacked tea powder and produces evenly distributed dielectric heat throughout the powder bed. Tea powder raw material is spread into a uniform thin layer on food-grade non-stick conveyor belts and conveyed sequentially through multi-section microwave sterilization cavities. Precision thermal control inhibits mould and pathogenic bacteria hidden in tea powder without sudden severe thermal impact. The matched vapour exhaust system removes minor water vapour generated in the microwave treatment phase, enabling stable inline continuous sanitization during automatic conveying.
Core Strengths
Bulk penetrating dielectric heating achieves all-layer microbial inactivation inside tea powder piles. It avoids the defects of surface-only high-temperature treatment and delivers effective protection for natural tea scent and heat-labile polyphenol ingredients.
Mild thermal processing strategy greatly lowers the probability of tea powder agglomeration and colour browning triggered by overheating. Treated tea powder maintains excellent free-flowing performance for subsequent beverage formulation.
Flexible PLC parameter modulation adapts to green tea powder, black tea powder and other tea powder categories with varied initial moisture. Food-grade easy-dismantling construction meets stringent hygiene standards of tea deep processing workshops.
Hermetically sealed cabins with high-performance microwave shielding comply with international industrial safety specifications. Fully automatic tunnel operation supports high-capacity continuous sanitization. The treated tea powder meets microbial safety criteria for beverage raw materials and export tea powder products.
Equipment Composition
Main assemblies: tea powder feeding hopper, thin-layer spreading module, microwave sterilization chambers, vapour exhaust assembly, real-time intelligent temperature detection unit and automatic discharge outlet. This industrial microwave sterilizing equipment is widely deployed in tea deep-processing plants for sanitization of fine tea powder raw stock.
| Component | Function |
| Microwave Generator | Supplies microwave energy |
| Treatment Chamber | Provides the processing space |
| Conveyor | Transports tea powder |
| Feeding System | Controls powder input |
| Exhaust Unit | Removes heat and moisture |
| Control System | Manages processing parameters |
| Safety Interlock | Protects operators and equipment |
Application Fields
Instant Tea Powder — Suitable for selected instant tea powder products.
Green Tea Powder — Applicable to powdered green tea materials.
Black Tea Powder — Used for controlled thermal treatment of black tea powder.
Tea-Based Ingredients — Suitable for selected tea-derived food ingredients.
