Glycol Evaporator To Cool Cooked Potato Wedges

glycol evaporator to cool cooked potato wedges

A glycol evaporator works based on the physical properties of the glycol solution. Glycol, when mixed with water, can significantly lower the freezing point of water. In an industrial refrigeration system, the glycol-water solution is pumped to the evaporator. As the solution circulates through the evaporator, it absorbs heat from the surrounding environment, in this case, the cooked potato wedges. The heat causes the glycol solution to evaporate or vaporize to some extent. This evaporation process absorbs a large amount of heat, thereby reducing the temperature of the cooked potato wedges. The heated glycol solution then returns to the refrigeration unit to be cooled down and is ready to be circulated again to continue the cooling process.

Advantages

Effective Cooling: The glycol evaporator can rapidly reduce the temperature of the cooked potato wedges, which helps to quickly stop the cooking process and preserve the texture, color and flavor of the potato wedges. It can also inhibit the growth of microorganisms and extend the shelf life of the products.

Uniform Cooling: The glycol solution can evenly distribute the cold in the evaporator, ensuring that each part of the cooked potato wedges is cooled evenly, without obvious temperature differences.

Stable Temperature Control: It is easy to adjust and control the temperature of the glycol evaporator. By precisely controlling the temperature of the glycol solution and the flow rate, the cooked potato wedges can be cooled to the required temperature accurately and maintained at a stable temperature.

Food Safety: When food-grade propylene glycol is used, it poses no harm to human health and meets food safety requirements.

Precautions

Concentration of Glycol Solution: The concentration of the glycol-water solution has a significant impact on its freezing point and cooling effect. It is necessary to select the appropriate concentration according to the required cooling temperature. Generally, the suitable temperature range for glycol solutions used as coolants is 0°C to -20°C.

System Sealing: The glycol evaporator system should be well-sealed to prevent leakage of the glycol solution. If propylene glycol leaks, it may contaminate the cooked potato wedges and affect food safety. Regular inspections and maintenance of the system are needed to ensure its tightness.

Cleaning and Maintenance: The evaporator should be regularly cleaned to remove dirt, potato residue and other impurities that may accumulate on the surface, which can affect heat transfer efficiency. In addition, the glycol solution should be checked and replaced regularly to ensure its cooling performance.