Industrial freezers are an essential piece of equipment for food processing and storage industries. They are used to quick-freeze various products to extend their shelf life, maintain their quality, and preserve their nutrients. Quick freezing machine is particularly important for the preservation of perishable foods, including fruits, vegetables, seafood, meats, and dairy products. In this article, we will explore what industrial freezers are, their different types, and their applications.
An industrial freezer is a piece of equipment that rapidly lowers the temperature of a product, usually food, to a very low temperature, often below -18°C (-0.4°F), in a short amount of time. This process, called quick freezing or flash freezing, helps to lock in the product's freshness and nutrients, reduce the growth of bacteria and other harmful microorganisms, and prevent the formation of ice crystals that can damage the product's texture and taste.
Industrial freezers come in various types, each with its unique features, benefits, and applications. Here are some of the most common types of industrial freezers:
Spiral freezers are one of the most popular types of industrial freezers used in food processing industries. They consist of a conveyor belt that moves the product through a spiral-shaped freezing chamber while continuously blowing cold air on the product from various angles. The spiral design allows for maximum use of the available space and efficient use of the freezing power, resulting in a high freezing capacity and a low operating cost. Spiral freezers are commonly used for freezing meat, poultry, seafood, baked goods, and other food products.
Tunnel freezers are another common type of industrial freezer used in food processing industries. They consist of a straight-line conveyor belt that moves the product through a tunnel-shaped freezing chamber while cold air is blown on the product from the top and bottom. Tunnel freezers offer a high freezing capacity, can handle a wide range of product sizes and shapes, and are relatively easy to clean and maintain. They are commonly used for freezing vegetables, fruits, bakery products, and other food products.
Blast freezers are used for quick-freezing large batches of food products in a short amount of time. They consist of a chamber with a high-velocity air circulation system that rapidly lowers the product's temperature to the desired level. Blast freezers are ideal for preserving the texture, taste, and color of delicate food products and for reducing the risk of bacterial growth. They are commonly used in meat processing, bakery, and seafood industries.
Plate freezers are used for quick-freezing products that have a high water content, such as seafood, fruits, and vegetables. They consist of a series of horizontal plates that are chilled with a refrigerant. The product is placed between the plates, and the cold surfaces of the plates freeze the product from both sides. Plate freezers offer a high freezing capacity, can handle various product sizes and shapes, and are relatively easy to clean and maintain. They are commonly used in seafood processing industries.
Cryogenic freezers use liquid nitrogen or carbon dioxide to quickly freeze the product. The low temperature of the liquid causes the product's moisture to freeze instantly, forming small ice crystals that do not damage the product's texture or taste. Cryogenic freezers offer a high freezing capacity, are energy-efficient, and can handle a wide range of product sizes and shapes. They are commonly used in the meat, poultry, and bakery industries.
In summary, industrial freezers are essential for preserving perishable foods and maintaining their quality, freshness, and nutrients. They come in various types, including spiral freezers, tunnel freezers, blast freezers, plate freezers, and cryogenic freezers, each with unique features and benefits for different applications in the food processing and storage industries.