Product Description
The frozen meal microwave heating equipment adopts high frequency 2450 MHz microwave energy, directly acting on ice crystals and polar water molecules inside sealed frozen ready meals, frozen boxed meals, frozen pre cooked dishes, central kitchen frozen portions, frozen airline meals and frozen tray packed fast food. Water molecules and ice crystals vibrate, rub and collide at an ultra high frequency of 2.45 billion times per second, converting electromagnetic energy into thermal energy, realizing integrated tempering, thawing, volumetric reheating and pasteurization for frozen food materials.
Different from traditional hot air ovens and steam heating which rely on slow surface heat conduction, microwave delivers strong penetrating volumetric heating. It effectively solves typical industry pain points for frozen meal processing: partial over cooking while core remains icy, large temperature deviation, rice dehydration and hardening, vegetable over softening, sauce loss, juice dripping and unstable batch to batch quality of finished frozen meals.
In operation, sealed frozen meal trays or lunch boxes are orderly placed on food grade wear resistant conveyor belt and continuously fed into multi cascaded microwave tunnel cavities with adjustable conveying speed. Microwaves penetrate packaging containers and heat rice, meat and vegetable ingredients simultaneously from inside to outside, completing gradual tempering thawing followed by rapid reheating to target core temperature, meanwhile inhibiting pathogenic bacteria such as E. coli and mould. The matched exhaust dehumidification system timely discharges water vapor and condensate inside cavity, completing continuous integrated tempering, thawing, reheating and pasteurization in one single production pass.
Uniform microwave thermal field avoids local over heating and partial pre cooking. It retains moisture, original flavour and nutritional components of frozen meals, keeps rice soft and vegetable texture intact. It improves food safety for large volume central kitchen production, cold chain distribution and commercial frozen meal supply.
Main Advantages
1. Volumetric Inside out Heating, Integrated Tempering Thawing & Uniform Reheating
Adopts molecular volumetric heating instead of surface heat transfer. Frozen meals are heated simultaneously from inside to outside while passing through tunnel cavity. It eliminates icy core, edge over heating, rice hardening and uneven temperature difference. Processed frozen meals maintain consistent taste and stable core temperature, greatly improving finished product qualification rate for mass frozen meal production.
2. Segmented Controllable Heating, Minimize Juice Loss & Preserve Original Taste
Support segmented power regulation for tempering thawing and reheating stages, avoiding damage caused by one time high power heating. Short time rapid treatment reduces nutrition loss and juice dripping. Rice stays soft, vegetables maintain proper texture and sauce evaporation is minimized. Especially suitable for large batch 18℃ frozen ready meals, central kitchen frozen portions and commercial frozen meal projects with strict taste requirements.
3. PLC Intelligent Adjustable Process, Adaptable for Various Frozen meal Specifications
Equipped with PLC touch screen control system; microwave power, conveyor speed, cavity temperature and exhaust air volume support stepless adjustment. Multiple segment processing recipes can be stored for quick switching, adapting to different sizes of sealed frozen trays / lunch boxes with different initial frozen temperatures. Modular integrated tunnel structure supports customized length and belt width, convenient for parameter debugging and daily maintenance.
4. Continuous Automatic Production, Synchronous Pasteurization & Easy Production line Docking
Multi stage microwave suppressors are installed at tunnel inlet and outlet, ensuring microwave leakage complies with international safety standards. Fully automatic tunnel type assembly line realizes non stop continuous high throughput production. It can be seamlessly connected with upstream packaging and downstream boxing conveying lines. Microwave achieves synchronous pasteurization to inhibit mould and harmful microbes, improving food safety for central kitchens, aviation catering and export grade frozen meal products.
Equipment Composition
The frozen meal microwave heating equipment is fully automatic conveyor tunnel assembly line with SUS304 food grade stainless steel modular design, complying with food processing GMP hygiene standards. The complete set includes feeding station, frozen meal positioning section, multi cavity microwave heating tunnel body, exhaust dehumidification system, online infrared multi point temperature monitoring unit, microwave leakage suppression device, PLC intelligent control cabinet and automatic discharging unit. It is specially designed for large scale standardized continuous tempering, thawing, reheating and pasteurization of various sealed frozen meal products.
Application Fields
Custom developed for frozen meal factories, central kitchens, group catering enterprises, aviation and high speed rail catering suppliers, cold chain food manufacturers. Widely used for continuous microwave tempering thawing, reheating and pasteurization of sealed frozen meals. Processed frozen meal achieves uniform core temperature and high food safety performance.
