If you are used to store tomatoes in your refrigerator (just like I did for years), here’s why it’s bad: Tomatoes have delicate cells, and excess cold causes the cell walls to burst, leaving the tomatoes mealy and tasteless. So you should this instead: Keep tomatoes on your kitchen counter in a single layer—on a rimmed tray for instance. if you want to speed up ripening, place tomatoes in a paper bag with an apple. Apples have the property to emit ethylene gas which acts as a ripening agent. Once ripe, your tomatoes will last for up to 3 days.