A cooler is mostly used for this primary reason – keeping groceries or cooked food cold. This allows campers to store products for days, without being afraid of them expiring. Depending on the ice chest size, a person can store enough food to last for a few days. It’s a good solution to keep the drinks and food cold during hot weather. Many people take one to the beach.
Big and heavy coolers can be used as a seat or as a small table when you are out. It’s a nice feature that eliminates the need to bring one.