Used machines for sale
 Cryogenic freezing food with nitrogen
Main brands:
Cryotech, Metal Cryo
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| Cryogenic freezing food with nitrogen |
Cryogenic nitrogen freezers are special equipment used in food industries, laboratories and other applications where fast and efficient freezing is required. Here is an overview of their function, functioning and types:
What it's for: Cryogenic nitrogen freezers are designed to quickly freeze products, maintaining their quality and preserving their natural characteristics. They are frequently used in food freezing processes, preservation of biological samples, storage of biological cells and tissues, among other applications.
How it works: The operation of cryogenic nitrogen freezers is based on the use of liquid nitrogen, which has an extremely low temperature of -196°C (-321°F). Here is a summary of the process:
Liquid Nitrogen Supply: Liquid nitrogen is fed into the freezer chamber, where it comes into direct contact with the products to be frozen.
Heat Transfer: Liquid nitrogen has a very low temperature and when it comes into contact with products, it quickly transfers heat from them to itself, instantly freezing them.
Formation of a Layer of Ice: During the freezing process, a layer of ice can form on products due to the moisture present in the air. This layer of ice can help preserve the quality of the products.
Liquid Nitrogen Removal: Once products have been frozen, the remaining liquid nitrogen in the freezer chamber can be removed, and frozen products can be stored or processed as needed.
Types of cryogenic nitrogen freezing freezers:
Liquid Nitrogen Immersion Freezers: In these freezers, products are submerged directly into liquid nitrogen for quick freezing. They are suitable for processing small batches of products.
Liquid Nitrogen Spray Freezers: These freezers use a stream of sprayed liquid nitrogen to freeze products. They are effective for freezing products continuously in a production line.
Liquid Nitrogen Flow Freezers: In these freezers, liquid nitrogen is injected into a chamber through a flow system, where products are frozen as they pass through it on a conveyor belt. They are suitable for large-scale and continuous processing.
These are some of the common types of cryogenic nitrogen freezers used in various industries. The choice of freezer type depends on specific production needs, the volume of products to be processed and the characteristics of the products to be frozen. |
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