Welcome to the Wonderbag

At this year’s Amsterdam Symposium on the History of Food I talked to Jon Verriet, who’s been researching the history of the haybox. That’s an insulated container, into which you put hot food, which then keeps cooking thanks to the retained heat. Jon made the point that hayboxes often see an upsurge during times of war and hardship, when they can be promoted as good for the country because they save energy and money. Environmentally-aware types also like them, to save energy as they cook their l...