How long does it take to defrost a freezer?

In this brief guide, we will look at the question “How long does it take to defrost a freezer?” as well as some other questions related to freezers.

How long does it take to defrost a freezer?

How long it will take to defrost a freezer depends on how much frost buildup there is inside and how old or new your refrigerator is, but generally, a freezer can defrost completely anywhere between 4-5 hours up to 24 hours.

You also need to remember that if you wait for there to be excessive frost build up in the freezer before you defrost it, it’ll not only take you longer to do that, it may also significantly damage your refrigerator.

When you decide to defrost your freezer, you need to also make sure that all the stuff inside it is removed, because it can spoil all the food you have inside when you defrost it.

Also, when defrosting your freezer, always consult the user manual that came with the machine because these instructions will almost always differ from machine to machine, which means that you may need to follow certain rules that cannot be ignored.

Factors that determine how long it’ll take to defrost a freezer?

There are many factors that determine how long it will take to defrost a freezer, and they can be external, meaning the qualities of the environment, or internal, meaning the quality of the machine and the insides of it.

The primary internal factor responsible for the length of time it takes for the freezer to defrost is naturally, the thickness of the ice and when the frost is so thick that your freezer door is stuck or you can see parts of the freezer being too covered in the ice, it will obviously take longer.

That kind of thick ice is also a sign that you should be defrosting your freezer more often because it may mean that there is something wrong with it, and it may not be a bad idea to get it checked out either.

You should be prepared for the fact that it may even take you over a day to completely defrost such a refrigerator, even if the refrigerator door is left wide open throughout the period.

Making sure that your refrigerator is not faulty, like the defrost thermostat or compressor being broken, can also mean that it will take too long to defrost a freezer.

Some refrigerators also have a self-defrost function, so check if yours does, and if it is working, because in the absence of this function you may find that your freezer may start collecting frost.

Some external factors that may affect how long it will take to defrost your freezer may be what method you are using to defrost your freezer, and if you are just leaving the doors open you may find that you have more trouble defrosting it, especially if you live in colder climates.

How to Defrost a freezer?

To defrost a freezer, you can either press the defrost button, which is there in most modern refrigerators, or you can switch it off, empty it out, and leave the doors open. You can also take this opportunity to clean your freezer and refrigerator because as the frost starts to melt, you will have a lot of time to attend to your refrigerator.

Also, you can use the time when you are defrosting your refrigerator to sort through the stuff you might have collected, and throw out some of it.

How to avoid frost in the freezer?

To avoid frost in a freezer, you can do the following things:

  • Don’t open your freezer too often.
  • Don’t put too many things in your refrigerator
  • Make sure the door is not faulty or damaged anywhere
  • Check whether the seal is functioning properly.
  • Set your freezer temperature properly according to where you live.
  • Don’t place too hot or even warm foods in the freezer, bring things to room temperature first.
  • Defrost the freezer regularly.

What to do when defrosting a freezer?

Here are some things to do when defrosting a freezer:

  • Empty the shelves in advance
  • Plan accordingly
  • Make arrangements for the food before you do it
  • Keep towels and cleaning supplies handy for the leaking water
  • Read the instruction manual carefully
  • Do it when you can also clean out the freezer

What not to do when defrosting a freezer?

Here are some things not to do when defrosting a freezer:

  • Don’t do it when there are too many things in it
  • Don’t wait for the frost to get too much
  • Don’t try to do it without switching it off
  • Don’t do it on an impulse

Other FAQs about Freezers that you may be interested in.

How to freeze something fast?


In this brief guide, we looked at the question “How long does it take to defrost a freezer?” as well as some other questions related to freezers.

To defrost a freezer properly you need to ensure that you have read the manual of your refrigerator because that is the most important thing to do.

If you have any more questions like “How long does it take to defrost a freezer?”, please feel free to reach out to us at any time!