Freezers

Freezers and freezers work on the same principle as a refrigerator, but cool with an internal temperature of −18 ° C and colder, which enables long-term storage of frozen food. Food can also be frozen with 4-star freezers. Many appliances also have a quick freeze switch (which either resets itself or has to be reset) that permanently switches the compressor on. In this way, the frozen food is cooled to well below −18 ° C, so that larger quantities can be frozen without thawing frozen food that has already been stored. In many cases, the devices are also equipped with a separate quick freezer (it is usually located at the top and has a separate flap, while the other freezer compartments work like a drawer). Chest freezers are suitable for storing frozen food in larger pieces (e.g. whole meat). Due to their shape (cold air sinks downwards, so less of it escapes when the lid is opened than when the door of a freezer is opened), their energy consumption is lower, especially where the lid is opened frequently, for example in supermarkets, this is beneficial noticeable. In the household, however, it is a disadvantage that the contents are on top of each other and are therefore not as clearly arranged as in a freezer. During defrosting or cleaning, the water that accumulates also collects on the floor of the freezer and is therefore not so easy to remove. Some freezers therefore have a lockable drain or a removable tray to catch the water. Chest freezers are therefore particularly widespread in rural households today, where larger pieces of meat have to be taken care of during domestic slaughter, and hunters also use them to store game. Ultra-low temperature freezers are used to store sensitive biological samples such as deoxyribonucleic acid (DNA).

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