Here’s where things get a little tricky. You can put dry ice in a cooler, but you have to treat it like the grumpy genius it is. Don’t just throw a block in there and slam the lid shut. That’s a recipe for a pop-top explosion or a cracked plastic cooler.
Why? Because the gas builds up pressure. A well-sealed cooler can bulge, warp, or even burst like an overinflated balloon. It’s not dangerous in a “boom!” way, but it’s definitely a mess. You want a cooler with a loose-fitting lid or a small vent hole. Alternatively, just don’t close it all the way.