Signs of an unripe melon may include shiny skin, pale coloring, and a light mass. [2] X Research source
Buy perforated plastic bags at grocery stores, department stores, or online.
You can also put cut melon in airtight zipper-lock bags to refrigerate it.
Store melon pieces in freezer bags or airtight plastic containers. Note that the flavor and texture of melon may deteriorate after freezing. Mark the date on the bag or container when you freeze it to remember when you have to discard the melon.
If you’re not sure how long the melon has been left out for, it’s better to be on the safe side and toss it in the trash.