The biochemical processes in a fresh vegetables have not stopped after being vegetables harvested, which means that changes in them can be positive (ripening) or negative. Period of vegetables storage depends on many factors and the periods given here are an estimate. If the vegetables are not fully ripe they can be stored for certain period at room temperature until they reach full maturity and then keep them in the fridge. The vegetable should never be kept in sealed bags or boxes – allow it to breathe.
Melons and watermelons: Whole melons can be stored in a cool, dry, dark place up to ten days (note that for melon storage period depends on the variety and degree of ripeness). If cut, these fruits should be stored in the refrigerator in an open bowl.