Ice build up in a mini fridge usually occurs when the fridge's defrost system isn't working properly or when the door seal is damaged, allowing warm air to enter the fridge. It's like when you leave your car's window open on a cold day - the warm air from outside causes the windows to fog up, and before you know it, ice starts to form. Similarly, when warm air enters your mini fridge, it can cause the temperature to rise, leading to ice build up.
Imagine you're trying to keep your favorite ice cream from turning into a sad, melted puddle. You want to keep it cold and frozen, right? Well, ice build up in your mini fridge can make it harder to keep your food and drinks at the right temperature. This means your ice cream might not stay frozen, and your soda might not stay cold - and who wants that?
Mini Fridge Ice Build Up Bad at Amelia Rodrigues blog