Oranges: When looking for a ripe orange, don’t worry about color. Oranges with green or brown patches can be just as ripe. For the best flavor, look for a firm, heavy orange with a thin, smooth skin. For the juiciest, sweetest fruit, look for oranges with a sweet, clean fragrance. You can store oranges at cool room temperature for one week or for two weeks in the refrigerator.
Watermelon: Choose a firm, heavy watermelon with a smooth skin — and be sure it has a well-defined yellow area on one side. This is the spot where the watermelon has been resting while ripening, and if it’s not there it means it may have been harvested too soon. Ripe watermelons should also be dark green in color.