#freefrost

As known, the inner surface of the refrigerator during work is covered with a frost layer. Therefore, refrigerators require of the regular defrosting. Modern models use drip and air defrost.

Drip defrost

This system works as follows. Usually, the evaporator is hidden inside back wall on the rear panel of the refrigerating chamber in order to avoid contact with foods. In addition, the open evaporator can be accidentally damaged. Respectively, it provides a low temperature of the rear wall. Therefore, water vapor condenses on the wall with the ice formation. But other chamber walls are not covered with ice. At the end of each cooling cycle, the electric heater heats evaporator after the compressor stopping. As a result, the ice melts and the water flows into special container by special chute. After compressor activation, the water in the container is heated and vaporized. Then the next cycle begins. PROS: - low price; - wide range of models; - low power consumption; - low noise level. CONS: - need to clean the ice manually; - this technology is available only in single door refrigerators; - automatic drip defrosting is not possible in freezers; - possible refrigerator capacity is 1,7 to 8,8 cu. ft.; - the rear panel is constantly covered with ice; - requires more frequent defrosting compared to No frost; - the temperature in the lower and upper parts of the refrigerating is different by several degrees.

No Frost or air defrost

This system is based on forced ventilation through the evaporator, which is located outside the freezer. It was developed and patented by specialists from Zerowatt factories from the Candy Industrial Group. The system appeared under the Frost Free name in refrigerators of the Candy, Hoover and Iberna brands. Today, a similar technology is widely used by various companies under the name No Frost. This technology continues to improve. For example, Whirlpool developed Supreme Total No Frost technology, which uses two separate No Frost subsystems with two fans for the freezer and refrigerator compartment. The video at the end shows the benefits of improved Hisense Total No Frost compared to conventional Frost Free.

No Frost operation

First electric refrigerator is appeared 100 years ago. Today it`s an indispensable attribute of any modern kitchen. The high popularity of these household appliances is accompanied by fierce competition between companies that constantly expand the functionality of their models with the help of innovative technologies. But, of course, the price and technical values also significantly affect the choice of the optimal refrigerator.

Silver Nano Anti-Bacterial Coating

The inner walls in the refrigerator are covered by the silver nano anti-bacterial coating that prevents growth of mold and bacteria. According to Samsung engineers, this coating destroys 99.9% of bacteria and is effective for the entire period of the refrigerator operation.

Built-in LED display or TV

Additionally, many modern refrigerators have often the LCD display or even TV. Moreover, market offers SMART models that provide WiFi control. For example, the patented Samsung Family Hub Smart Fridge technology enters into group of the most innovative modern technologies.

Ice maker and dispenser

Unfortunately, ice maker requires the connection of a refrigerator to the water supply system. The water freezes after filtration, and the ice is collected in special compartment in the cubes form. Switching off the ice generator is carried out when filling the reservoir for its storing to exclude foreign odors. Ice machine has often a ice knife. These functions have different names. For example, Samsung calls them Tall External Ice and Slim Ice Master. Dispenser provides clean, cold water, but requires the installation of a special filter. The video at the end shows these options in the Samsung refrigerator.

Fresh Zone (Flex Cool, Fresh Box, etc.)

Usually, this compartment provides temperature of about zero degrees. In turn, it can be divided into several smaller compartments. In this case, one compartment has the humidity about 90-100% and provides storage of fruit and vegetables. The second compartment with moisture content no more than 50% provides storage of fresh meat and fish. This technology ensures the longest storage of fresh products.

No Frost technology

This technology cools foods by using cold air circulation, which is provided by built-in fans. No Frost technology prevents frost build-up on the inner walls, eliminating the need for periodic manually defrosting. PROS: - no defrost; - more balanced temperature. The temperature difference in the refrigerator without No Frost is equal to 5-6 degrees. No Frost provides this value in range of 1-2 degrees. CONS: - additional fan noise is 3-4 dB. Of course, some companies also offers the noiseless models. But they are more expensive. - intensive dehydration of products. Unfortunately, airflow constantly dehydrate the foods, reducing the moisture content in them. But the food storage in the package completely eliminates this problem.

Super freezing mode

Of course, this mode is a short-lived. It provides the temperature below of -24 degrees in the freezer and is intended for fast freezing products in large quantities. Super freezing is normally automatically shut off to reduce the load on the compressor. Manufacturers recommend the activation of this mode a few hours before placing the food products in the freezer.

Additional functions