Cantaloupes often contain five of the longest-lasting chemicals, one of which is dieldrin, an exceedingly toxic and carcinogenic insecticide. Though it was banned in 1974, residues still persist in soils and are taken up through the cantaloupe's roots and absorbed into the edible portion.
No organic? Thoroughly wash the outside of the melon, since a knife can drag exterior residues through the flesh as you slice it.
Recipe to try: Cantaloupe Soup With Prosciutto and Mozzarella Sandwiches