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Hydro‑Cooler for loose produce

Our Hydro-Coolers quickly reduce the core temperature of fresh produce to extend shelf-life.


Wyma Hydro-Coolers quickly reduce the core temperature of fresh produce, extending shelf-life while preserving flavour and appearance.

Water is sprayed over a heat exchanger which is cooled to several degrees below freezing by refrigerant. As the water passes over the heat exchanger, the water cools to a user-set temperature. Cooled water then floods down onto produce. Water is collected in a tank at the base of the Hydro-Cooler for recycling.

We have two types of Hydro-Cooler that can handle loose produce:

Hydro-Cooler for loose produce: Produce travels by conveyor through the Hydro-Cooler. Produce can be partially or fully submerged in water. An outfeed elevator gently carries produce to the next stage in your line. Suitable for carrots, potatoes, parsnips, etc.

Flow-through Hydro-Cooler for small plastic bins or loose produce: Bins or loose produce travel by conveyor through the Hydro-Cooler. Produce is sprayed with cooled water. This model is commonly used for broccoli, asparagus, cherries, radishes and beetroot (beet).

At Wyma, we have an in-depth understanding of the post-harvest handling and cooling processes. Dwell time, equipment and refrigeration specifications are tailored to meet your needs.


Quickly reduces core temperature of produce Extends shelf-life and preserves flavour and appearance.
Produce immersion* Improves heat transfer efficiency.
Sensor available to detect water level.
A Variable speed controlled conveyor Allows you to control cooling time.
B Stainless steel tank Strong and cleanable.
C Rotary Filter Unit* Provides continuous water filtration to prevent blockages.
D Gooseneck elevator* Gently delivers produce to next stage. Extensions available*.
E Drain valves (two) Allows tank to be drained of water. Automatic valves available*.
F Access hatches* Full access for maintenance and cleaning.
G Water spray system Cools produce and maintains optimum temperature.
H Integrated coils No need for external heat exchanger.
I Modular belt on conveyor Allows water to fall through to the base of the tank for recycling.
Cleanable and serviceable.
J Integrated tank Allows semi-immersed cooling.
K Equipment automation with touch screen Smart, easy equipment control.
Variable speed controlled elevator and pump Allows full equipment control.
Gravity-aided belt tensioning Reduces belt wear.

* Optional

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