Ideas to keep your Food Cold in your Cooler

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Ideas to keep your Food Cold in your Cooler


You may know a polar bear tube is a PVC pipe with water inside it and the ends sealed. You store them in the freezer and put them in your cooler when it’s time to go. They are a reusable, space-saving, high-efficiency, no-mess solution to keeping your food cold while camping. You can make SUPER polar bear tubes by adding ½ cup salt per gallon to the water in those tubes. The salted water freezes at a lower temperature so the ice in the tubes lasts longer.

To make your own Polar Bear Tubes, measure the internal dimensions of your cooler and determine if you want the tubes to run the long way or the short way in the cooler – you may want some of each. Also measure the internal dimensions of the freezer where you’ll store the tubes when not in the cooler! You want them to fit easily in the freezer, too.

Cut PVC tubes one inch shorter than the length you measured. Use either 1 ½-inch or 2-inch PVC pipe. Remember, the larger the mass of the ice inside the tube, the longer it will last, so larger tubes will stay cool longer than smaller ones.

With an appropriately sized cap and PVC cement, seal one end of the tube. Follow directions on the cement for drying time, then fill the tube just over ¾ full (80 percent is about right) with salted water. The empty space allows expansion of the freezing water without breaking the tube. A mix of ½ cup salt per gallon of water will result in a solution just a bit saltier than seawater. It will freeze at about 28 F rather than 32 F.

Carefully seal the open end with cap and allow to the cement to cure with the tube standing upright so the water doesn’t reach the cement. Decorate the tubes anyway you see fit. Make them unique, because you want to keep track of your SUPER tubes. Once the cement is cured, put the tubes in your freezer, and they will be ready for your next outing.

Installing Non-Slip Feet

When you throw a normal cooler into the bed of a pickup truck or on the wet deck of a boat, it slides all over the place. It gets banged up and wrecks stuff around it. Heaven forbid, you should want to stand on it to get a better view of … whatever. A few large anti-skid pads strategically placed on the bottom of the cooler quickly eliminate all those problems.

To ensure good adhesion to the plastic, if the surface is rough smooth with some sandpaper or emery cloth. Then use rubbing alcohol to clean off the places where you intend to attach the pads.



Those Super Polar Bear tubes you made in Hack #1? Another great use for a couple of them is to support a false bottom in your cooler. That way if you use regular ice in addition to the tubes or any of the frozen food thaws, the run off drains to the bottom of the cooler but the contents stay high and dry above it.

Making a false bottom is so easy! Get a length of that white, coated wire shelf material. Cut it down so it fits in the bottom of the cooler. Zip tie two or three polar bear tubes between the wires and lay the system in the bottom of the cooler. Voila! You’re done. No nastier melt water and who-knows-what-else slurry contaminating your camping food.