The humble aluminum can gets a leak-proof redesign

Every drink has its trade-offs: Plastic bottles are lightweight and leak-proof, but they come at a cost to the environment. Cans are convenient and recyclable, but are prone to spilling. A new can design marries the best of both. ReLid USA designed a fully recyclable aluminum can that’s resealable, thanks to a patented tab that opens and closes using a built-in sliding mechanism. You lift the tab end and slide it open to drink; when you want to reseal it, you slide the tab back to its original position. According to ReLid, the tabs work for at least 14 reseals. The design and development of...