Leave the Fridge Door Open, or Open and Shut Multiple Times?

Updated on November 15, 2016
Is it better to open and close the refrigerator or leave it open?
Is it better to open and close the refrigerator or leave it open? | Source

Refrigerators use a lot of energy in a household. So using one most efficiently should be on everyone's mind.

One debate about refrigerator usage has to do with opening and closing the door.

Many of use have heard from our parents "shut the fridge door; you'll let all the cold out." But is it actually true?

Everyone knows that leaving a refrigerator door open for long periods of time will warm up your food and cause your refrigerator to have to work harder in order to keep the food cool. But if you open and close it a bunch of times, when you are loading groceries, for example, or making food, are you actually using more energy by opening and shutting it?

Does the suction created every time you open it actually cause more cold to leave the refrigerator than if you just left it open for a short period of time?

It turns out that this is a testable question.

Portland General Electric: Switch Labs

Portland General Electric creates short videos and article for consumer, highlighting energy saving tips.

The energy tests are called "Switch Labs" and in one episode they tested common refrigerator issues including opening and closing the door or leaving it open.

How Long Is It Okay To Leave the Refrigerator Door Open?

As you can see from the video, even with the suction created by the door opening and closing, it was better to shut the door and reopen it multiple times rather than leave it open.

The Switch Lab also found that keeping the door closed was the best way to save energy with your refrigerator, above and beyond keeping the refrigerator full, which did not seem to have too much effect either way on the overall energy usage.

Other Money Saving Tips for Refrigerators

According to a June 2012 article on Huffington Post, refrigerators are second only to air conditioner units in the amount of energy they use in a year. So it is important to find ways to cut those costs and save energy.

  • Consider replacing an older model refrigerator. The new models are more efficient than ever and may end up paying for themselves by reducing the yearly energy costs.

The best type of refrigerator for energy efficiency are the ones with the freezer on top. The freezer on the bottom is a very close second and the side-by-side is the least efficient.

  • Clean the coils regularly. Your refrigerator's coils are located at the back or bottom of your fridge and dust and debris on the coils reduces the fridge's energy efficiency and its ability to cool.

You can also save money in unnecessary repairs by keeping these clean and tidy. Once every few months is all your need and you can use a vacuum cleaner to complete the task quickly.

  • Don't put hot foods in the refrigerator until they are cool.

Part of the way that your refrigerator works is by using the cool food items already in it to maintain coolness. This is why your food will stay fresh for a period of time even if you have a power outage. If you put a warm dish of food in there, it makes all the food around it warmer and the inside of the refrigerator warmer, increasing the overall energy usage.

Brief History of Refrigeration

Refrigeration of some type has been around for several centuries. People used to harvest ice in the winter and use it in ice houses during the hotter months to help keep food from spoiling.

In the late 1800's Carl von Linden invented a process to make gases into liquids and this led the way for refrigerator units to become a part of everyday culture and use.

Even after Linden's discovery, ice boxes were still in wide use in the early part of the 20th century. Big blocks of ice would be placed inside the block to keep food cool. Ice was delivered every few days to replace the melting block.

While these old boxes that used actual ice may have been more energy efficient from an electricity perspective, they certainly were harder to deal with and less reliable.

Old fashioned ice boxes would often use actual ice to keep the refrigerator cool.
Old fashioned ice boxes would often use actual ice to keep the refrigerator cool. | Source

Close the Refrigerator Door!

So whether you are making dinner, unloading groceries or searching for a snack, be sure to keep that refrigerator door closed.

By keeping the door closed you will reduce your electric bill and extend the life of your refrigerator.

Keep it closed and keep it cool!

Is your refrigerator usage energy efficient?

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Questions & Answers

    Comments

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      • bravewarrior profile image

        Shauna L Bowling 

        4 years ago from Central Florida

        One thing I never think about is to clean the coils of my fridge. Out of sight, out of mind kinda thing. At least I'm doing the open and close properly!

      • tirelesstraveler profile image

        Judy Specht 

        4 years ago from California

        Guilt. Last night when I couldn't sleep I used the refrigerator as a night light. During the day I am very efficient.

      • The Examiner-1 profile image

        The Examiner-1 

        4 years ago

        When the weather was cold I removed all of the food for each meal at once. Now that the weather is warm/hot I go into the fridge twice instead of all at once.

        When I bring home groceries I prepare them for the freezer and fridge. Then I open one door at a time and pack the groceries in as fast as possible to close the door. I gave this a thumbs up and shared it.

        Kevin

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