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defrosting
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defrosting

vb. (present participle of defrost English)

Wikipedia
Defrosting

Defrosting (or thawing) is a procedure, performed periodically on refrigerators and freezers to maintain their operating efficiency. Over time, as the door is opened and closed, letting in new air, water vapour from the air condenses on the cooling elements within the cabinet. It also refers to leaving frozen food at a higher temperature prior to cooking. The resulting ice inhibits heat transfer out of the cabinet increasing running costs. Furthermore, as the ice builds up it takes increasing space from within the cabinet - reducing the space available for food storage. Defrosting the unit is achieved by:-

  • Temporarily removing all food from the cabinet.
  • Turning off power to the unit.
  • Leaving the doors to the unit open
  • Waiting for the ice to melt and draining it appropriately. Using a towel is advisable when completing this step.

The process may be sped up by mechanical removal of ice, or the introduction of gentle heat into the cabinet. Placing a pan of hot water in the cabinet and closing it is an effective method. Using a fan to blow in room temperature air will also greatly speed up the melting process as well as help to evaporate the damp surfaces. Note that the fastest manual way is to use a vacuum cleaner: simply insert the hose into the exhaust port (nearly all are designed for this), and use the wand to blow on the coils; this method is much faster than any other.

Any mechanical removal of ice should be done gently so that the equipment is not damaged.

It is generally recommended that defrosting should be done annually.

Many newer units employ automatic defrosting (often called "frost-free" or "no frost") and do not require manual defrosting in normal use. Although, in some cases, users of Frost Free fridge/freezers have noted ice blocking the vent that allows air into the refrigerator compartment. All refrigerators and/or freezers whether or not frost free, should be defrosted at least every 6 months (or more if you live in humid conditions or if the door is opened excessively). Frost Free units should be defrosted every year, as frost can form on the evaporator covers, which can look unsightly and degrades freezing performance, sometimes to the point of the freezer thawing out due to degradation of defrosting. This can happen when the defrost timer is not set up correctly/malfunctioning or if the heater units or temperature sensors are malfunctioning.

Usage examples of "defrosting".

After some experimentation with programming, I started the chicken stock defrosting, then minced a mountain of shallots, carrots, and celery.

It took him a while after defrosting to get over the feeling, too, because Captain Bu wasn’t happy about the jawbone course corrections he had to make when he was thawed out himself.

Members of the ship's crew were going about their business, storing last supplies, cleaning the deck, pouring water to form fresh icepaths, and defrosting frozen pika-pina rope with a lamp.

As I was defrosting chicken for dinner, I kept thinking of the people on my lawn, and the more I thought about them, the angrier I got.

Faye, defrosting the refrigerator, would hurl potfuls of hot water into the freezer compartment.