For maximum flavor and juiciness, always store whole tomatoes at room temperature until they’re fully ripe.
The chilly storage conditions of your refrigerator prevent tomatoes from ripening properly, resulting in a mealy, less tasty tomato.
Once your tomatoes are fully ripe, you can extend their shelf life for two to three more days by placing them in the fridge. And after you've cut into a whole tomato, refrigerate any leftovers right away; they'll keep well for a few days longer.
