If you've bought sweetcorn that's fresh from the farm, it can last for up to 5 to 7 days in the fridge. But, if it's been sitting on the supermarket shelf for a while, its shelf life will be shorter - more like 3 to 5 days. Think of it like buying a new car - the fresher it is, the longer it will last.
Now, let's talk about storage. If you store your sweetcorn in a cool, dry place, it will last longer than if you leave it out in the sunlight or in a warm room. It's like keeping your favorite book in a cool, dry place - it will stay in good condition for longer.