The Way Freezers Work

We all know that freezers were invented in order to freeze food. It may sound very simple, but the technology and history behind this special appliance is definitely not as simple as it seems.

The invention of freezer

Electronic freezers have greatly improved since its invention in the year 1945. Freezers, at first, were not as convenient to use. Various freezer features like automatic defrosting, energy efficiency, thermostat and others have undergone improvements to make it perform better and more effectively.

In the early years of its invention, freezers were not first advisable to be used domestically because they were deemed unsafe. However, they were improved and later on mass produced after the Second World War.

To fully understand how a freezer works, let us first take a look at its basic components.

Components of a freezer

Every freezer has the following: compressor, condenser, metering device and evaporator. All these factors collaborate in order to retain the needed temperature (usually between -23 degrees to -18 degrees Celsius) and freeze food. The temperature that some freezers can maintain may still vary depending on the unit type and its capacity.

Modern freezers

Freezers are used for various purposes. They could be used for commerce, or they can also be used as a domestic appliance. Freezers used domestically fall between two types: upright models and chest models. Upright freezers look similar to our refrigerators, whereas chest freezers are like upright units that are laid on their backs.

There are many sophisticated upright units today that come with special features such as built-in ice dispenser, classy interior lights, special thermostat displays and controls, and some even have flat television screens. All these features made modern freezers easier to use and maintain.

Basically, freezers are necessary technologies made to preserve food by preventing bacteria from forming through freezing. Today, many different types of freezers are available in the market to cater to different needs and purposes. These kinds of freezers have been developed over the years to better cope with the changing needs of the people.