A cooler works like a fridge if you do it right

Yes, a cooler can keep things cold for days — you just have to manage it properly.

The biggest mistake people make is thinking a cooler is a magic box. It’s not. It’s an insulated container that slows down temperature change. Your job is to start cold and stay cold.

Pre-chill everything. Put your food and drinks in the fridge the night before. A warm six-pack going into a cooler full of ice is the enemy. Also pre-chill the cooler itself — toss a bag of ice in it for a few hours before packing.

Use block ice, not cubes. Block ice lasts longer because it melts slower. You can freeze a few milk jugs full of water — they work as ice packs and you can drink the water later. Cube ice melts fast and leaves you with a cooler full of water you can’t use.

Keep the cooler in the shade. Obvious, but people forget. Cover it with a reflective blanket or a tarp if there’s no natural shade. Every degree of ambient temperature cuts your ice life.

Open it as little as possible. Figure out what you want before you lift the lid. If you have kids who grab snacks every hour, make a separate “snack cooler” with less insulation so you don’t wreck the main one.

Drain the water if you can. Melt