Industrial pasteurization using microwave technology
Food safety process
Consumer demand for clean-label, preservative-free food is reshaping food manufacturing. Industrial pasteurization using microwave technology offers a compelling alternative to cook-and-chill processes: reduced waste, extended shelf life, and consistently high product quality — without compromising taste or safety.
High-efficiency pasteurization solutions
Our microwave and radio frequency solutions offer fast, efficient pasteurization for various products, without compromising product quality or damaging the packaging.
Key advantages of microwave and radio frequency pasteurization
Pasteurize in minutes
The product is processed quickly in just a few minutes while conventional processes can take 40-60 min.
Extended shelf life
Achieves over 50 days of shelf life without compromising product quality.
Packaging compatibility
Works with a wide range of materials: cardboard, paper, wood, thermoformed trays, glass, and more.
No damage to packaging
Precise temperature control prevents deformation or damage to sealed packs (no holes).
Thermal repeatability
Delivers consistent and uniform heating for each batch, ensuring reliable results.
Preservation of food quality
Controlled heating prevents overheating or drying for perfect product quality, preserving taste, texture, and nutritional value, proven by consumer panels.
No additives, no chemicals
Ensures microbial safety without the need for preservatives or chemical treatments.
Reduce space and costs
Compact, continuous-flow systems with over 80% energy efficiency — fully electric and easy to integrate into modern factories.
Food products for pasteurization
From ready-to-eat meals, sauces, and soups to petfood, SAIREM’s pasteurizers handle a wide variety of products quickly and efficiently, preserving taste and overall quality.
Ready-to-eat meals pasteurization
- Fast and continuous pasteurization
- Extended shelf life (over 50 days)
- Maintains texture and organoleptic properties, as shown by consumer panels
- Plastic film preserved – no holes, no valves
- Compatible with a variety of packaging material (cardboard, paper, fiber trays)
Breads and tortillas pasteurization
- Shelf life extended
- No overheating
- Preserves taste and structure
- No additives or preservatives required
- Fully electric, space-saving solution
Low-acid products pasteurization
- Safe microbial reduction without overprocessing
- Retains nutritional and sensory properties
- Adapts to complex recipes with uneven density
- Shorter cycle times compared to conventional methods
- High repeatability and precision
Sauces and soups pasteurization
- Effective microbial inactivation with reduced cooking time
- No phase separation or texture degradation
- Works with sauces containing solids or particulates
- Supports clean-label production (no additives)
- Suitable for glass, plastic, or paper-based containers
Petfood pasteurization
- Eliminates spoilage organisms and pathogens
- Maintains taste, smell, and texture preferred by pets
- Extended shelf life without preservatives
- Reduced processing time and energy consumption
- Adaptable to various packaging formats
Baby food pasteurization
- Nutrient preservation through fast heating
- No additives or chemical treatments
- Suitable for glass jars, pouches, or trays
- Consistent, validated thermal profiles
- Improved shelf life with natural taste retention
Case studies
Ready meal pasteurization using microwave technology
Discover how microwave technology can improve existing processes as well as the meal quality itself.
Microwave pasteurization: innovative solution
Innovative microwave pasteurization technology enables the achievement of these key requirements: fresh taste, safe food, and extended shelf life.
Industrial jam processing and pasteurization with microwave technology
A fruit preserves producer optimized its jam processing and pasteurization using SAIREM microwave technology.
What are the different pasteurization processes for ready meals?
Discover the main pasteurization processes for ready meals, including retorts, spiral pasteurizers, HPP, and microwave pasteurization.
NUTRIPURE RANGE
Discover Sairem’s industrial pasteurizers
To meet your production needs for the pasteurization of ready-to-eat meals, SAIREM has developed a flexible modular industrial pasteurizer that scales from 200 kg/h to 2 t/h.
Our microwave pasteurization systems require minimal maintenance and feature easy-clean design, reducing operation costs and downtime.
SAIREM’s range delivers the flexibility and efficiency needed to process diverse products – ready-to-eat meals, fruit jars and prepared foods – according to your specific requirements.
Here’s a questions-and-answers section about our industrial pasteurization solutions.
Retort pasteurization is well-established, but it comes with real operational constraints: long cycle times of 40-60 minutes, high energy consumption, and quality degradation from prolonged heat exposure. Microwave pasteurization processes products in minutes, consumes 1.4x less energy than retort, and delivers measurably better results — in a CTCPA study, 59% of consumers preferred microwave-pasteurized meals versus 25% for retort.
Yes, and with significant advantages. Unlike cook-and-chill, microwave pasteurization extends shelf life naturally, reducing waste and logistical constraints. The continuous, automated process also lowers operating costs and requires minimal maintenance — making it a practical, scalable alternative for industrial production lines.
Unlike retort systems, it runs on standard electrical supply only — no steam network, no complex utilities. Instant start-up and continuous flow make it easy to deploy on any existing production site.
Do you need help improving your production process?
Our experts are here to assist you in finding the best solution!