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Cool freshly cooked, piping-hot soup in as little as 10 minutes!
Shinetsu Works Co., Ltd. and Tohoku University have jointly developed the industry’s first rotary heat exchanger chiller to solve the ramen industry’s “cooling problem”

  • Quality Maintenance
    • Precooling equipment
    • Chillers

Overview of Products, Technologies, and Services

This product focuses on the cooling process for large-batch ramen soup and achieves a cooling speed approximately 2 to 4 times faster than the conventional method of filling a sink with water or ice to cool the stockpot from the outside. It can cool the soup to the low 20s Celsius in about 10 minutes during the winter and in about 20 minutes even in the summer. Furthermore, as a piece of kitchen equipment that addresses multiple challenges facing the ramen industry—such as improved hygiene management, solutions to labor shortages, and reduced water and ice consumption—we aim to expand its use to ramen shops and central kitchens nationwide.

Product Features

  • “As fast as 10 minutes. Cooling speed approximately 2 to 4 times faster than conventional methods.”
    Place this unit into a stockpot containing prepared soup and run it while running tap water through it to facilitate efficient heat exchange.
    In winter, it can cool the soup to around 20°C in about 10 minutes, and even in summer, it can cool it to the 20°C range in about 20 minutes. Compared to conventional methods, this achieves a significant reduction in cooling time.
  • “Improved Hygiene Management and Maintained Soup Quality”
    By quickly passing through the temperature range of 60°C to 20°C—where bacteria tend to multiply—hygiene management conditions are improved.
    This helps prevent soup degradation, and some stores have reported that the soup’s shelf life has been extended by one to two days.
  • “Helps Address Labor Shortages and Reduce Labor Intensity”
    During cooling, simply flip the switch and the cylindrical section rotates automatically.
    This eliminates the need for the “constant, hands-on mixing” that was previously required, reducing the workload on staff.
  • “Water Usage Reduced to One-Fourth of Previous Levels: Significant Reduction in Water and Ice Consumption”
    The only refrigerant used is tap water. Since it does not require a sink full of ice water, water consumption is reduced.
    In addition, because it reduces reliance on ice makers, it helps lower utility costs and reduces the load on equipment.
  • “Adjustable Rotation Speed”
    The central cylinder operates at a standard speed of 700 rpm and can be adjusted up to a maximum of 1000 rpm.
    This allows for flexible operation tailored to the soup volume and desired quality.