Dometic Group has filed a patent for an improved mobile cooling box with an ice maker capable of freezing water and producing ice cubes. The design includes a main body, lid, handle, user interface, ...

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These expert-recommended and tested ice machines—from trusted brands including Frigidaire, Igloo, GE, and more—ensure you and your drinks stay chill.

Of course, water freezes at 32º Fahrenheit. For most cooler kings and queens, the optimum temperature for a cool beverage is a few numbers up the scale at around 40º F.

The ideal ice-to-contents ratio is 2:1, so don't expect a cooler full of food with just a sprinkle of ice on top to stay cool for very long. Pack as much ice as you can.