How To Use Dry Ice In A Cooler: 12 Steps (with Pictures) - WikiHow

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Terms of Use wikiHow is where trusted research and expert knowledge come together. Learn why people trust wikiHow How to Pack Dry Ice in a Cooler PDF download Download Article Plus, how much dry ice you'll need for your cooler size Co-authored by Devin McSween Reviewed by Ollie George Cigliano

Last Updated: November 6, 2024 Fact Checked

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  • Packing a Cooler with Dry Ice
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  • How much dry ice do I need?
    • |
  • Handling, Storing & Disposing of Dry Ice
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This article was reviewed by Ollie George Cigliano and by wikiHow staff writer, Devin McSween. Ollie George Cigliano is a Private Chef, Food Educator, and Owner of Ollie George Cooks, based in Long Beach, California. With over 20 years of experience, she specializes in utilizing fresh, fun ingredients and mixing traditional and innovative cooking techniques. Ollie George holds a BA in Comparative Literature from The University of California, Berkeley, and a Nutrition and Healthy Living Certificate from eCornell University. There are 11 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 230,130 times.

Filling your cooler with dry ice is a great alternative to using regular ice—it keeps your food and drinks colder for longer and doesn’t create a soggy mess as it evaporates. Simply choose a cooler that lets the gas escape, wrap the dry ice in newspaper, and stack your food and drinks on top. Keep reading to learn how to pack your cooler with dry ice, how much dry ice you need for your cooler, and important safety tips for handling, storing, and disposing of dry ice.

Using Dry Ice in a Cooler

Use a cooler that has a drainage cap or doesn’t seal all the way closed. Then, line the cooler with styrofoam or cardboard. Wrap the blocks of dry ice in newspaper and add them to the cooler. Place cardboard or regular ice on top and then add your food and beverages.

Steps

Section 1 of 3:

How to Pack a Cooler with Dry Ice

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  1. Step 1 Choose a cooler with ventilation. 1 Choose a cooler with ventilation. Dry ice is safe to use in most coolers as long as there's a way to ventilate them. Make sure the cooler has a lid that doesn't seal completely shut or a drainage cap (which is usually located near the bottom of the cooler). If you need a small cooler or just want to use the dry ice for a day, choose a styrofoam cooler or urethane-insulated box. To keep the dry ice for longer, use a large roto-molded or plastic cooler.[1]
    • If you're using a urethane-insulated box, buy one that's at least 3 inches (7.6 cm) thick.
    • Dry ice is the solid form of carbon dioxide. As it “melts” (which is called sublimation), it turns back into carbon dioxide gas.
    • Warning: It’s important to choose a cooler with ventilation because if carbon dioxide gets trapped inside a container, it can potentially explode.[2]
  2. Step 2 Cover the bottom of the cooler with styrofoam or cardboard. 2 Cover the bottom of the cooler with styrofoam or cardboard. If you aren't using a styrofoam cooler, protect the plastic interior of your cooler from the extreme cold of the dry ice. Simply cut pieces of styrofoam or cardboard and lay them on the bottom of the cooler.[3]
    • Place styrofoam or cardboard along the sides of the cooler if the dry will touch the walls of the cooler, too.
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  3. Step 3 Put on insulated... 3 Put on insulated gloves and wrap the dry ice in newspaper. To make the dry ice last longer, wrap the blocks of dry ice in newspaper while wearing insulated gloves. The newspaper insulates the ice and helps slow down how quickly it evaporates. It also helps prevent you from accidentally touching the dry ice with your bare hands.[4]
    • If you’re using small chunks of dry ice, you may not be able to wrap them in newspaper. Instead, surround the chunks with newspaper to slow evaporation.
  4. Step 4 Add the dry ice and some insulation, then arrange the food on top. 4 Add the dry ice and some insulation, then arrange the food on top. To keep food and drinks cold, place the wrapped dry ice on the bottom of the cooler. Then, set a piece of cardboard on top or add a layer of newspaper or regular ice. Simply arrange the food or drinks on top of the cardboard, newspaper, or regular ice.[5]
    • Food and drinks will freeze if they touch the dry ice directly. The cardboard, newspaper, or regular ice acts as a barrier to keep the items cold instead of frozen. As a plus, it also prevents you from accidentally touching the dry ice.
    • Tip: Cut a hole about 1 inch (2.5 cm) wide in the cardboard so the gas is better able to escape as the dry ice evaporates.
    • When you need to get the food or drinks, simply open the cooler and remove the items.
  5. Step 5 Put the dry ice on top of food and drinks to freeze them, if you prefer. 5 Put the dry ice on top of food and drinks to freeze them, if you prefer. If you want to use the cooler as a portable freezer, place the items you want to freeze at the bottom of the cooler. For example, place meat from a hunting trip in storage bags at the bottom of the cooler. Then, wrap the dry ice in newspaper and set it directly on top of the food to get it to freeze quickly.[6]
    • Avoid putting the dry ice on top if you plan on getting in and out of the cooler often since it can be difficult to move the dry ice out of the way.
  6. Step 6 Pack the gaps with newspaper. 6 Pack the gaps with newspaper. To help the dry ice last longer, take a few sheets of newspaper and wad them into loose balls. Place the newspaper between the chunks of dry ice or wherever there are any gaps. This helps insulate the dry ice, as extra space can make it evaporate faster.
  7. Step 7 Crack open the lid or loosen the drainage cap on the cooler. 7 Crack open the lid or loosen the drainage cap on the cooler. As the dry ice evaporates, gas can build up within the cooler. To prevent damage to the cooler, leave the lid slightly cracked (if you're using styrofoam or the urethane box). If you're using a plastic or roto-molded cooler, unscrew the drainage cap a little.[7]
    • If the gas has no way to escape, pressure can build up within the cooler and weaken the plastic or even cause the cooler to explode.
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Section 2 of 3:

How much dry ice do I need?

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  1. Step 1 Get 10-20 lbs (4.5-9 kg) of dry ice for every 24 hours of cooling you need. 1 Get 10-20 lbs (4.5-9 kg) of dry ice for every 24 hours of cooling you need. To determine how much dry ice you need, first decide how long you'll need the dry ice in the cooler. For every 24 hours of storage you need, get 10 to 20 lbs (4.5 to 9 kg) of dry ice. Then, consider how much dry ice fits inside your cooler along with the items you want to store. For example, a 40 to 60-quart (37 to 56-liter) cooler can usually hold 10 pounds (4.5 kg) of dry ice.[8]
    • The type of food in your cooler also determines how much dry ice you need. For instance, frozen items may require more dry ice than refrigerated items.
    • In general, 5, 10, 20, 40, and 60-quart (4.7, 9.4, 18.9, 37.8, 56.8 L) coolers need 5 to 10 lbs (2.3-4.5 kg) of dry ice to last 24 hours. For each extra day of cooling you need, add 1.5 to 2x as much dry ice.
    • Most 100 quart (94.6 L) coolers need 10 to 15 lbs (4.5-6.8 kg) of ice for 24 hours.
    • You can find dry ice at most grocery stores. Or, order it online.
  2. Step 2 Buy blocks of dry ice to help keep the cooler cold for longer. 2 Buy blocks of dry ice to help keep the cooler cold for longer. Most dry ice is available to buy in large blocks or pellets. Blocks typically last longer and evaporate more slowly than small pieces or pellets of dry ice.
    • Other ways to help keep your cooler cold include:
      • Placing it in a shaded location out of direct sunlight.
      • Avoiding opening it frequently to keep the ice from evaporating.
      • Covering the outside with aluminum foil to help redirect light and heat.
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Section 3 of 3:

Handling, Storing, and Disposing of Dry Ice Safely

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  1. Step 1 Wear gloves to... 1 Wear gloves to protect your hands when you handle the dry ice. Because dry ice reaches extremely cold temperatures (around -109° F or -78° C), it can burn bare skin and even cause frostbite. Always wear thick, insulated gloves when picking up the dry ice or grabbing items out of the cooler.[9]
    • Alternatively, use tongs or thick towels to move dry ice.
    • If other people are opening the cooler to get items out, ask them to wear gloves and inform them not to touch the dry ice.
    • If you need to break apart the dry ice, wear safety goggles and a face shield to protect your eyes and face.[10]
  2. Step 2 Transport and store the cooler in a well-ventilated area. 2 Transport and store the cooler in a well-ventilated area. In closed spaces, carbon dioxide can be toxic to breathe in. If you’re traveling with the cooler, open the windows in your vehicle. Then, store the dry ice outside if possible. If not, place the cooler in a large, open, and well-ventilated room with the windows open.[11]
    • Always keep the cooler’s lid slightly cracked or the drainage cap open to allow the carbon dioxide to escape as it evaporates.
    • Never store dry ice in a tight, closed area, as the buildup of carbon dioxide can be dangerous.
  3. Step 3 Let the dry ice evaporate in a ventilated area when you’re done with it. 3 Let the dry ice evaporate in a ventilated area when you’re done with it. To dispose of dry ice, place the cooler outside, open the lid, and unwrap the newspaper from the dry ice. The dry ice will evaporate on its own over several hours or days, depending on how warm it is outside.[12]
    • Never pour dry ice down the sink or toilet, as the extremely cold temperatures can damage the plumbing.
    • Do not dispose of dry ice in a garbage can or other container, as dangerous amounts of carbon dioxide can build up inside.
    • If you have small children or pets around, keep them away from the cooler. Never leave the dry ice unattended.
    • If you can't leave the dry ice outside, set it on a solid surface, such as a wooden cutting board, in an open, well-ventilated room. Then, open the windows in the room to keep the area ventilated.
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Community Q&A

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  • Question Can I use a gel cool pack to prevent it from evaporating as well? Community Answer Community Answer Gel cook packs are nowhere near cold enough to keep dry ice from evaporating, so I’ll say no, you can’t use them to prevent evaporation. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 9 Helpful 6
  • Question How do I keep dry ice from evaporating? Community Answer Community Answer Liquid nitrogen is your best answer. Keep the dry ice in a sealed container that has the nitrogen cooling it. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 16 Helpful 14
  • Question Is dry ice expensive? Isolde Isolde Top Answerer It is quite pricey at $1 to $3 a pound, meaning that a block can be around $60 to $100, depending on its size. You can bring down the costs if you buy it in bulk. For more help, see How to Buy Dry Ice. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 6 Helpful 9
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Warnings

  • Do not eat or drink dry ice. Not only is it extremely cold, but it is solid carbon dioxide, which can be toxic to consume and inhale.[13] Thanks Helpful 1 Not Helpful 0
  • Seek medical attention if you start to feel dizzy, have difficulty breathing, or have an elevated heart rate. These can be symptoms of carbon dioxide toxicity.[14] Thanks Helpful 1 Not Helpful 0
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Things You'll Need

  • Styrofoam cooler, urethane-insulated box, roto-molded cooler, or plastic cooler
  • Pieces of cardboard or styrofoam
  • Dry ice
  • Newspaper
  • Insulated gloves or tongs
  • Regular ice

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References

  1. ↑ https://www.health.ny.gov/publications/7081/
  2. ↑ https://www.ehs.washington.edu/system/files/resources/dryice.pdf
  3. ↑ https://youtu.be/oAOdMvEmis8?feature=shared&t=35
  4. ↑ https://youtu.be/YqcKz84JtgE?feature=shared&t=13
  5. ↑ https://youtu.be/YqcKz84JtgE?feature=shared&t=18
  6. ↑ https://ehs.fiu.edu/_assets/docs/lab-safety/dry-ice-usage-guidelines.pdf
  7. ↑ https://www.health.ny.gov/publications/7081/
  8. ↑ https://www.safety.rochester.edu/ih/dryicehandle.html
  9. ↑ https://www.ehs.washington.edu/system/files/resources/dryice.pdf
More References (5)
  1. ↑ https://www.health.ny.gov/publications/7081/
  2. ↑ https://www.ehs.washington.edu/system/files/resources/dryice.pdf
  3. ↑ https://www.ehs.washington.edu/system/files/resources/dryice.pdf
  4. ↑ https://www.health.ny.gov/publications/7081/
  5. ↑ https://www.dhs.wisconsin.gov/chemical/carbondioxide.htm

About This Article

Ollie George Cigliano Reviewed by: Ollie George Cigliano Private Chef & Food Educator This article was reviewed by Ollie George Cigliano and by wikiHow staff writer, Devin McSween. Ollie George Cigliano is a Private Chef, Food Educator, and Owner of Ollie George Cooks, based in Long Beach, California. With over 20 years of experience, she specializes in utilizing fresh, fun ingredients and mixing traditional and innovative cooking techniques. Ollie George holds a BA in Comparative Literature from The University of California, Berkeley, and a Nutrition and Healthy Living Certificate from eCornell University. This article has been viewed 230,130 times. 2 votes - 60% Co-authors: 20 Updated: November 6, 2024 Views: 230,130 Categories: Food Selection and Storage | Chemistry Article SummaryX

Before putting dry ice in your cooler, prepare your cooler by lining the bottom and sides with styrofoam or cardboard so it doesn’t get damaged from the extreme cold. Then, purchase 10 to 20 pounds of dry ice for every 24 hours you need to keep your cooler cool. After you purchase it, wrap the ice in newspaper so it lasts longer. Then, place the ice on the bottom of the cooler if you want to keep food and drinks cold or on top if you want to freeze the food below it. Once the cooler is filled, leave the top slightly ajar or open the drainage cap so gas can escape. For more tips, including why your cooler must have a drainage cap before you can use it, read on! Did this summary help you?YesNo

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Yes No Advertisement If you buy through links on our site, we may earn a commission.Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Ollie George Cigliano Reviewed by: Ollie George Cigliano Private Chef & Food Educator 2 votes - 60% Click a star to vote Co-authors: 20 Updated: November 6, 2024 Views: 230,130 Rea Richardson

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"I need to transport iced cakes and cupcakes for two/three hours. In our desert heat, the icing will melt. Now I can..." more Delphine

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