All-you-can-eat breakfasts can waste twice as much food as menu-ordered meals. Researchers have cooked up a way of reducing leftovers https://www.economist.com/science-and-technology/2026/04/14/how-to-make-buffet-breakfasts-less-wasteful?taid=ce7e3983-b36c-41f7-8468-caeb95e8e67d Photo: Alamy
