How to Defrost a Freezer Fast

No one wants to defrost the freezer but sometimes it’s got to be done.

While newer frost free models are great at helping us avoiding this tedious chore, they are a factor in freezer burn.

The way auto-defrost freezers work is to raise the temperature so that any ice build up melts - only problem is that means your food can start to thaw and refreeze too.

So, if you want to get the maximum benefits from your freezer you are better off with a manual defrost model.

The key to avoiding defrosting time is having a good seal on the door. This keeps moisture out of the freezer, because moisture that gets into the freezer turns solid, forming ice on the walls and shelves. Exactly the stuff we have to melt and get rid of.

I’ve become quite an expert at defrosting the freezer after living in an apartment with a bar fridge. The freezer inside the fridge did not seal because that freezer was the cooling unit for the whole fridge. If I tried to freeze ground beef the milk in the fridge went bad.

In two months time it would look like a frozen cavern, with frost built up so thick we'd scrap our knuckles reaching for the ice cube tray. So, once a month we had to defrost that freezer just so we could keep ice cubes in it without bloody knuckles.

Time to defrost the freezer.

Hopefully what I've learned will save you some time.

Steps to Defrost Freezer

  • Remove Food
  • Turn Off Power
  • Get Towels and a Bucket
  • Hurry Up and Wait OR Help It Along
  • Clean It
  • Turn It On and Let It Cool
  • Repack



Remove Food
Use another freezer if you can or store your food in a cooler.

If it’s a cold winter day put the food outside, where no wildlife can get to it. This is a great time to take inventory of what you have.

If your thawing a unit inside of a fridge then remove the food from the fridge too. If your fridge has a different door and separate controls allowing you to turn off the freezer while leaving the fridge running it’s safe to leave food in the fridge.

Turn Off Power
Don’t even try defrosting a freezer with it running, it’s a drain on electricity and on you (believe me, I've tried - because I didn't want to unpack the fridge). So turn off the power, unplug it and get ready to roll up your sleeves. Now you can leave the door open.

Get Towels and a Bucket
Towels can go into the freezer on the bottom and on shelves to help absorb the ice that defrosts. Also put towels on the floor tucked against the freezer because water is likely to drip to the floor.

Use the bucket to ring the towels. Or if you have a lot of ice melting grab a clean mop too.

I use the mop to keep the floor around the freezer dry and rags to sop up the water on the bottom shelf.

If your unit has a tray under it, as commonly found in older refrigerators with freezers on top, make sure to keep emptying the tray as the ice melts. Dump it in the bucket or in the sink.

I know many freezers have drain plugs, but if it's not plumbed to a drain it's not gonna help you.

Hurry Up and Wait
Generally at this stage you wait for the ice to melt and keep mopping up the water. If you don’t have a lot of ice buildup this is certainly the easiest method to defrosting.

Help It Along
Too much ice and not enough time? There are four ways to speed up the defrosting process.

Hot Water Method
Take a pan and fill it with water, get it nice and hot on the stove or use a bowl in the microwave. Place the hot water inside the freezer and close the door. After about 5 minutes remove the pan or bowl and reheat then put it back in the freezer. Continue until ice is melted.

I personally hate the hot water method of defrosting the freezer. I find that the ice under the hot water melts first and the pan or bowl sticks to the ice as it cools off. It’s annoying to come back every 5 minutes and it doesn’t seem to help the ice melt that much faster.

Fan Method
Set up a fan outside the freezer with the freezer door propped open so that air circulates faster. More air flow will help the ice to melt faster.

However, you might not have a fan that you can angle properly and if your thawing a unit above a refrigerator it might not be worth the effort.

Blow Drier Defrosting Method
Lets think about this for a second. The goal is to turn ice into water. Blow driers and water are not a good combo. This is not the safest method. It is not recommended for safety reasons.

That said I’ll admit I’ve tried it. At first glance it doesn’t seem to do much. But what happens is the heat goes to the back and then up.

So after awhile the ice on the top will defrost away from the freezer, however with thick ice you most likely won’t see this. Instead large pieces of ice just start to break off the top.

In my experience this method along with the scrapper method and lots of towels is the fastest way to defrost the freezer.

Scrapper Method
Scraping the ice is probably the most common way of speeding up the process of defrosting the freezer. But we have to make sure to do it safely. And that, my friend, means no sharp objects.

There are two reasons for this. First you could hurt yourself. Second you can scrape or puncture the cabinet of your freezer. Well, it doesn’t sound like a big deal, puncturing the stuff behind the freezer cabinet could cause a leak and make your whole freezer useless. It’s not worth the risk.

A dull object, like a plastic spatula or spoon, works better. Think of it less as ‘scrapping’ and more as ‘assisting’ large chucks of ice to come out before they melt.

This method works well with the blow drier because as the ice starts to defrost off the wall or ceiling you can get the spatula under that and take out larger chunks.

Clean It
Use a mild detergent or 3 tablespoons baking soda in 1 quart of water to gently clean the freezer while it’s already empty.

And do not rub oil over your freezer like some sites suggest, because over time even at cold temperature that oil will go rancid.

Turn It On and Let It Cool
Make sure the freezer is dry or you’ll be starting to build up ice again before there's even food inside. Turn the freezer on, set the ideal freezer temperature for your needs, between 0F and -10F.

I would wait about an hour before adding food that is still frozen, longer for refrigerator temperature food.

Repack Frozen Foods in Good Condition
Check the foods you have before returning them to the freezer. Anything too old or freezer burnt should be tossed out. Any meat that has thawed needs to be cooked before it can be frozen again. Learn more about how to refreeze food if you're not sure.

Put like items together so they are easy to find. There's a method to organizing your freezer contents.

While we are on the topic there is a myth I would like to dispel.

Myth: Frost in a freezer contributes to freezer burn on your food.

Truth: Frost in the freezer usually means there is an air leak. However, foods that are properly wrapped in moisture-vapor proof freezer materials will not develop freezer burn simply because the freezer doesn’t seal properly.

While repacking the freezer I highly suggest you add every item to your freezer inventory sheet. This way you know exactly what is in there.

You can get a free printable freezer inventory sheet as a gift when you sign up for the Favorite Freezer Foods Ezine, a newsletter full of tips and tricks about freezer cooking.

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