Microwave Heating for Food 

Objective of blanching process is to inactivate or retard bacterial and enzyme action, which could otherwise cause rapid degeneration of quality. Blanching is carried out by exposing the entire product to high temperature for very short period of time directly to fruits and vegetables. Traditional blanching method were done by the means of steam or hot water, Steam blanching usually take longer time , water blanching is faster as compared to steam however it results in great loss in terms of nutrients of food. Kerone’s microwave based blanching systems are on other hand are very efficient, advantages that microwave blanching offers are constant volumetric heating, nominal oven temperature gradients, and no blanching residual products, reduced energy costs, and reduced processing time.

Features of Kerone’s Microwave Systems

• Fast and Even Heating: Uniform volumetric heating throughout the material.
• Selective Heating: Targets moisture or specific components without overheating the surface.
• Direct Employment of Large-Sized Feedstocks: Suitable for bulk and large material processing.
• Waste Reduction and Material Recovery: Minimizes losses and improves resource utilization.
• Better Production Quality: Enhances consistency and final product standards.
• Supports New Materials and Products: Enables innovation in processing.
• Energy Efficiency: Optimized energy utilization for lower operational cost.
• Overall Cost Effectiveness: Reduces long-term production expenses.
• Improved Process Control: Accurate monitoring and parameter adjustment.
• Operates from Electrical Source: Clean and convenient energy input.

Pasteurization and Sterilization

Pasteurization and sterilization both aim to extend food shelf life. Pasteurization primarily eliminates pathogenic microorganisms and inactivates spoilage enzymes, mainly in liquid food products, whereas sterilization destroys all forms of microorganisms. Traditional microwave systems at 915 MHz faced challenges such as non-uniform energy distribution and inconsistent heating due to varying moisture content. Kerone, in association with EMitech, Italy, has developed advanced microwave-based pasteurization and sterilization systems that overcome these limitations, delivering improved response time, output quality, efficiency, and precise control.

System Features:

• Low and easy maintenance
• Compact assembly
• Quick and easy installation
• Accurately engineered construction
• Hassle-free operation
• Long service life
• Rugged and high-toughness build
• Energy and cost efficient
• Power saving
• High-performance output
• Cost-effective investment

Thawing and Tempering

Thawing and tempering restore frozen food to usable condition before cooking. Conventional thawing requires large space and extended time, often affecting biological properties. Microwave heating defrosts from the core outward, ensuring uniform thawing with reduced processing time. Kerone’s systems offer controlled microwave emission suitable for products such as whole chicken and corned beef, ensuring quality preservation and efficiency.

Advantages:

• Fast and even heating
• Selective heating
• Handles large-sized feedstocks
• No hazardous emissions
• Improved production quality
• Energy efficient and cost effective
• Enhanced process control

Drying

Drying reduces moisture content for preservation and is traditionally time and energy intensive. Microwave drying generates heat internally, enabling faster moisture removal compared to surface-based conventional drying. Kerone’s industrial microwave dryers meet high-accuracy requirements, deliver faster response times, and provide environmentally friendly solutions with superior efficiency.

Advantages:

• Rapid and uniform heating
• Selective drying
• Better production quality
• Environment-friendly solution
• Highly controllable process
• Significant energy savings

Pre-Cooking

Pre-cooking reduces preparation time for consumers and is widely used for cereals, rice, bacon, and dried meats. Microwave heating provides controlled and rapid cooking with improved texture and reduced shrinkage. It is particularly effective in precooking cereal products by modifying starch properties for faster final preparation.

Advantages:

• Fast and uniform heating
• No waste generation
• Clean processing solution
• Improved product quality
• Energy efficient and cost effective
• Precise process control

Sterilization and Disinfestation of Food, Grains, and Seeds

With increasing demand for safe and long-lasting food products, sterilization and disinfestation have become critical. Conventional methods often fail to provide desired results. Kerone, in collaboration with EMitech, Italy, offers advanced microwave solutions that utilize electromagnetic energy to achieve lethal temperatures for microorganisms and pests without chemical residues.

These systems effectively treat cereals, seeds, legumes, and dry fruits by eliminating pests at all life stages while preserving nutritional and physical qualities. The technology supports environmental sustainability and complies with global phytosanitary standards.

Key Benefits:

• 100% pest mortality at all life stages
• No significant change in product quality
• No toxic residues
• No polluting gases
• Safe for operators and environment
• Energy saving