Piled next to lines and lines of identical Roma and Beefsteak tomatoes, the colors and lumps of heirlooms give way to a host of questions. What exactly is an heirloom tomato anyway? Do they taste better? Or are those misshapen tomatoes just another form of visual produce marketing? The answer to that last question is "kind," but in the best way possible. Ultimately, heirloom tomatoes' unique shapes and colors are their natural form because they were passed over for genetic modification.