A cold room maintains a temperature below room temperature but slightly above or near freezing. They are insulated and sealed to be able to remain at a constant temperature for an extended period of time. Cold rooms have a temperature range that is between room temperature and the temperature of a high capacity freezer.
The most common place that cold rooms are used is in the food industry where large amounts of prepared food needs to be stored. Food can be purchased or prepared in bulk and kept fresh until it is served or used.
Though food storage is a primary use for cold rooms, other scientific and manufacturing industries make use of them for testing products or storage. Chemicals that have to be maintained at a certain temperature to prevent a chemical reaction are stored in cold rooms.
The biggest difference between a cold room and a freezer is the temperature. Since freezers and cold rooms look the same, many people get confused. Freezers have to maintain frozen conditions with temperatures will below freezing. Cold rooms, on the other hand, are not designed to freeze food but to preserve it at a constant temperature, which can vary depending on the food and other conditions.
Another difference between cold rooms and freezers is time. Freezers are designed to store products below freezing for long periods of time. Cold rooms store food and other items for a limited time to keep them fresh.
Every business that uses a cold room has different conditions and requires a cold room to fit their circumstances. The type of cold room a company chooses depends a great deal on what they need to store. Different versions of cold rooms are available to meet any situation.
The common types of cold room are modular, combination, walk-in, and industrial chiller. The food industry has legal and sanitary regulations to meet and have to be vigilant regarding the type of cold room they choose.
Modular cold rooms are designed for the food industry. They have panels and insulation with the proper hygiene. Walls, ceilings, and floors are easy to access and clean. They come in several sizes and flat pack form for easy installation.
Combination cold rooms have different zones with different temperatures. One area of the room can be well below freezing while another area is slightly above freezing. They are designed to store products that require different conditions.
Walk-in cold rooms come in several forms and sizes. They are larger and more spacious and can have shelving or other storage areas. Most walk-in cold rooms are designed to store bulk food orders for access during preparation.
The largest of the cold rooms is an industrial chiller. They are large enough for vehicles to drive in and can store huge amounts of food. Fork lifts and handcarts can also enter an industrial chiller to remove stored items or unload trucks.
A cold room is an ideal storage area for keeping fruits and vegetables fresh longer. They are designed to stay cooler longer and serve as protection for perishable items.