how to store a watermelon
How to Store Watermelon. 1  Wait Whole watermelon should be left at room temperature until ripe. 2  Refrigerate Once ripe, place the whole watermelon, uncovered, in the refrigerator. 3  Seal Once cut, seal cut watermelon halves or slices in a GladÂ® Zipper Bag.  Refrigerate Store in the refrigerator.