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Help CenterBaked Beans Autoclave/canned Beans Retort/High-Viscosity Foods Retort
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By adding a fan on the basis of steam sterilization, the heating medium and the packaged food are in direct contact and forced convection, and the presence of air in the retort is allowed. The pressure can be controlled independently of the temperature. The retort can set multiple stages according to different products of different packages.
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Working principle:
Put the product into the sterilization retort and close the door. The retort door is secured by triple safety interlocking. Throughout the whole process, the door is mechanically locked.
The sterilization process is automatically carried out according to the recipe input to the micro-processing controller PLC.
This system is based on the direct heating for food packaging by steam, without other heating media (for example, the spray system is used water as an intermediate medium). Since the powerful fan forces the steam in the retort to form a cycle, the steam is uniform. Fans can accelerate the heat exchange between steam and food packaging.
Throughout the whole process, the pressure inside the retort is controlled by the program by feeding or discharging compressed air through the automatic valve to the retort. Due to steam and air mixed sterilization, the pressure in the retort is not affected by temperature, and the pressure can be set freely according to the packaging of different products, making the equipment more widely applicable (three-piece cans, two-piece cans, flexible packaging bags, glass bottles, plastic packaging etc.).
The Quality of Baked Beans Starts with Sterilization
Baked Beans have been a classic on European and American dining tables for over a century — a spoonful on breakfast toast, a can enjoyed during camping trips, carrying simple yet rich memories of beans with a full-bodied flavor.
However, few people realize that behind this “simple and delicious” food lies one of the most challenging processes in food production:sterilization.
Rotary Steam Retort Solves Three Major Challenges of Baked Beans
Challenge 1: Thick Sauce Makes Heat Penetration Difficult
Baked Beans contain highly viscous sauce. Natural convection inside the can is limited, making it difficult for heat to reach the center of the product evenly.
How a rotary retort solves it:
During sterilization, the cans continuously rotate , driving the beans and sauce to move and mix continuously. This creates a constant “stirring and heating” effect inside the can, significantly improving heat penetration and allowing the cold spot temperature to reach the required level faster.
Challenge 2: Uneven Heating Affects Product Quality
During static sterilization, beans near the can wall may become overcooked, soft, or even split, while the center of the can only just reaches the required sterilization temperature. This leads to inconsistent product quality.
How a rotary retort solves it:
Continuous rotation allows the contents to tumble evenly, making the heating curve of the entire can more consistent. The temperature difference between the can wall and the center is greatly reduced.
As a result, beans remain whole, firm, and visually appealing, while the sauce stays evenly distributed with a rich and stable texture — ensuring a high-quality product when the can is opened.
Challenge 3: Long Sterilization Time Increases Costs
To ensure complete sterilization at the center of the can, static sterilization often requires a longer heating cycle, increasing energy consumption and reducing production efficiency.
How a rotary retort solves it:
Improved heat penetration efficiency means the required F₀ value (sterilization intensity) can be achieved in a shorter time. Shorter sterilization cycles reduce steam and water consumption while increasing production capacity — delivering real cost advantages for large-scale manufacturing.
The listed price serves as a deposit. Before placing an order, please be sure to contact us to discuss your detailed requirements and obtain an accurate quote, thereby avoiding any unnecessary complications.
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