Microwave Pasteurization and Sterilization

Microwave pasteurization and sterilization, sterilization and pasteurization are essential for eliminating harmful microorganisms—such as Salmonella, Coliform bacteria, Staphylococcus—and eradicating mold, pests (like mealy bugs), and other contaminants from dry food products that pose hygienic or health risks. These products include spices, seasonings, dried fruits, grains, and similar items.

Microwave (MW) heating has proven especially effective when applied at temperatures between 85–95°C for 3 to 8 minutes. Within this temperature range, microbial inactivation occurs more rapidly than the degradation of the food’s physical and sensory properties. This is particularly important for herbs and spices, where preserving the original aroma, flavor, and appearance is critical.

Traditional pasteurization methods often require prolonged exposure to high temperatures, which can negatively affect the product’s quality and freshness. In contrast, continuous tunnel-type microwave systems allow for efficient pasteurization at lower temperatures in shorter timeframes. This method helps maintain the natural qualities of the food, delivering a final product that meets consumer expectations for freshness and safety.

Key Advantages of Microwave Sterilization

Microwave sterilization offers several distinct benefits when applied to flour processing:

1. Rapid Sterilization

Unlike conventional methods that require preheating the environment, microwave energy penetrates and directly heats the flour itself. This results in a much faster temperature rise and significantly shorter sterilization times. Traditional sterilization typically operates at 120–130°C for about 60 minutes. In contrast, microwave sterilization takes only 1.5 to 3 minutes at a lower temperature range of 70–105°C. For example, microwaves can eliminate E. coli in flour in just 30 seconds.

2. Preservation of Nutrients and Original Flavor

Microwave technology achieves microbial inactivation at lower temperatures and in less time, which helps preserve the flour’s nutritional content and its original characteristics such as color, aroma, taste, and texture.

3. Energy Efficiency

Because microwave energy acts directly on the material being treated, there is minimal heat loss to the surrounding environment. Compared to conventional heating methods, this can lead to energy savings of 30% to 50%.

4. Uniform and Deep Penetration

Microwaves selectively target areas with higher moisture content—where microorganisms are more likely to thrive—helping to prevent mold growth. With their ability to penetrate evenly throughout the product, microwaves ensure that both the surface and the interior are sterilized simultaneously, resulting in thorough and consistent treatment.

5. Safe and Non-Toxic

Microwave sterilization is a physical process that does not require chemical additives. It effectively kills bacteria, mold, and insect eggs without leaving any toxic residues or radioactive byproducts. The final product is safe and free from harmful substances.

6. Simple Operation and Easy Control

Microwave sterilization equipment is easy to start and operate. It allows for immediate use, flexible processing, and adjustable power settings, making the system convenient and adaptable for various production needs.

Versatile Applications

In addition to flour, microwave sterilization technology is suitable for a wide range of food products, including vegetables, dairy, seasonings, spices, and other dry goods. It is an ideal solution for modern, automated food processing lines seeking efficient, safe, and high-quality sterilization.

Microwave Machine Porudct Parameters

No.	Model	Power	Dehydration	Sterilization (kg/h)	Diameter (m)
1	AVN-12KW	12 kw	12 kg/h	120 – 150	7*0.84*1.75
2	AVN -20KW	20 kw	20 kg/h	192 – 240	9.4*0.84*1.75
3	AVN -30KW	30 kw	30 kg/h	300 – 375	11.7*0.84*1.75
4	AVN -40KW	40 kw	40 kg/h	396 – 495	10.52*1.06*1.75
5	AVN -50KW	50 kw	50 kg/h	504 – 630	11.7*1.06*1.75
6	AVN -60KW	60 kw	60 kg/h	600 – 750	12.86*1.06*1.75
7	AVN -70KW	70 kw	70 kg/h	696 – 870	14.03*1.06*1.75
8	AVN -80KW	80 kw	80 kg/h	804 – 1000	14.86*1.2*1.75
9	AVN -100KW	100 kw	100 kg/h	1000 – 1250	15.2*1.2*1.75
10	AVN -150KW	150 kw	150 kg/h	1500 – 1875	21.05*1.2*1.75

Our company has achieved outstanding global results in the hygienic treatment of dry food materials. In addition to sterilization and pasteurization, our technologies also enable enzymatic inactivation and gentle drying processes. If you are interested in microwave-based pasteurization or sterilization for your specific products, we welcome you to contact us for further information and customized solutions.

Details Picture of Machine

Customer & Service

We shipped the machinery to numerous countries globally, including Italy, Germany, Russia, Turkey, Australia, Indonesia, India, etc. Our machines and service have received commendations from nearly every customer, fostering repeat business.

1.Twelve months following installation (Within 13 months of delivery).
2.Complimentary advisory service prior to, during, and post-sales.
3.Supply fundamental production methods and formulations.
4.International on-site setup and personalized training for machine maintenance and operation.
5.Calibration and examination of the machinery until all components are operational before departing the manufacturing facility.

Packaging & Shipping

1.Daub coal oil on the surface of the machines.
2.Plastic film as the inner packing.
3.Train, ship of depend on clients’ requirement.

FAQ

Q: What is the duration of microwave machine warranty period?
A: Our guarantee spans one year from the commencement of operations.

Q: Can you describe the installation process?
A: We will deploy our skilled technicians to your facility to oversee the installation and commissioning tasks, providing training for your operators.

Q: If we share our factory layout, can you assist in designing the entire production line?
A: Certainly, our seasoned engineers and technical staff can aid in organizing the layout and overseeing the installation of the entire production line, tailored to your specific circumstances.

Q: What is the timeframe for your delivery?
A: Typically, it takes 7 – 10 days for stocked items, and 20 – 25 days for non-stock items, depending on the quantity.

Q: Will you provide support if issues arise during future production?
A: Absolutely, we are committed to being at your service. You can reach me through mobile, WhatsApp, Skype, Viber, WeChat, and more. I will promptly address and resolve any problems you encounter.

Microwave machine working video for reference.

In summary, microwave pasteurization and sterilization offer a technologically advanced and efficient means of ensuring food safety while preserving the quality and nutritional value of the processed products. These methods align with the growing consumer demand for minimally processed, high-quality foods in the modern food industry.

If you are interest in microwave pasteurization and sterilization, welcome your letter.

Our email address: [email protected]
Whatsapp number: 0086-13361030906

Microwave machine working video for reference.