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- Buying it more than a few hours before you need it. This is less about safety and more about the fact that dry ice doesn’t last very long. It takes about 24 hours for five pounds of dry ice to turn from solid to gas — even when stored in a cooler.
- Getting it anywhere close to your bare skin or mouth. As mentioned, dry ice sits well below freezing, at -109.3°F. If your skin comes in contact with it for more than 10 seconds, you risk serious frostbite.
- Storing it in the freezer or an airtight container. Once you bring dry ice home, it’s important to store it properly before you use it. If you keep it in the freezer, it will not only melt into a gas quickly, since the freezer is so much warmer than the temperature of dry ice, but it could also cause the freezer to shut down.
- Using it in an area that’s not well-ventilated. Because dry ice is made of carbon dioxide, as it turns to a gas you don’t want that gas to build up and replace the oxygen in the room.
- Overview
- Choosing a Cooler
- Buying Dry Ice
- Arranging the Dry Ice in the Cooler
- Buying a Cooler and Dry Ice
If you're tired of filling your cooler and finding soggy food in a puddle of melted ice, use dry ice instead. Dry ice will keep your food or drinks colder and will evaporate instead of melt. Choose a cooler that will let the gas escape and buy enough dry ice to fill the cooler. Decide if you want to store the dry ice on the bottom with the food or ...
Choose a cooler with ventilation to suit your needs.
Dry ice can be used with most coolers as long as there's a way to ventilate them. To ventilate the evaporating gas, the cooler should either have a lid that doesn't seal completely shut or a drainage cap (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. For longer dry ice use or for a larger cooler, choose a roto-moulded or plastic cooler.
If you're using the urethane-insulated box, buy one that's at least 3 inches (7.6 cm) thick.
Arrange styrofoam or cardboard inside the cooler, if necessary.
If you aren't using a styrofoam cooler, protect the plastic interior of your cooler from the extreme cold of the dry ice. Cut pieces of styrofoam or cardboard and lay them on the bottom of the cooler. You'll also need to place them along the sides of the cooler, if you'll have dry ice touching the inside walls.
Loosen the drainage cap on the cooler.
Determine how much dry ice you need.
First decide how long you'll need the dry ice in the cooler. For every 24-hours you need, buy 10 to 20 pounds (4.5 to 9 kg) of dry ice. You'll also need to consider how much dry ice will fit 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 for 1 day.
Buy blocks of dry ice.
Most dry ice is available to buy in large blocks or chunks. These will last longer than small pieces or pellets of dry ice. Consider measuring your cooler before you buy the dry ice so you know how many blocks will fit inside your cooler.
Wear gloves or protect your hands when you handle the dry ice.
Because dry ice reaches extremely cold temperatures, it can burn bare skin. Always wear gloves or handle the dry ice with thick towels so it doesn't come in contact with your skin.
Wrap the dry ice in newspaper.
To make the dry ice last longer, wrap the blocks of dry ice in newspaper. The newspaper will insulate it and slow down the evaporation time. Newspaper can also prevent you from accidentally touching the dry ice with bare hands.
If you bought small chunks of ice, you may not be able to wrap them in newspaper. Instead, surround the chunks with newspaper to slow evaporation.
Put the dry ice in the bottom of the cooler to keep food and drinks cold.
If you want to be able to access the food and drinks frequently or easily, place the wrapped dry ice on the bottom of the cooler. Then you can arrange the food or drinks on top of the ice. When you need to get the food or drinks, simply open the cooler and remove the items.
If you're storing food, remember that the food or drinks will freeze if they're touching the dry ice. Place newspaper or cardboard between the dry ice and the items.
This article was reviewed by
and by wikiHow staff writer,
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 190,304 times.
Thanks to all authors for creating a page that has been read 190,304 times.
Aug 16, 2024 · Method 1. Handling Dry Ice. Download Article. 1. Get your dry ice as close to the time of use as possible. This is important due to the fact that dry ice turns from a solid into a gas at a rate of five to ten pounds per 24 hours in a normal insulated container.
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Aug 30, 2022 · How to Use Dry Ice. If you decide to give dry ice a try, there are some important steps you need to take to make sure that not only get the most out of your dry ice but also do so safely.
