A 35-year-old Mars Bar was found during a house clearance in Scunthorpe, and it was discovered to be 56% bigger than the current version. The bar, with a best-before date of 1991, weighed 62.5g, while the current Mars Bar weighs 40g. The discovery has sparked discussions about 'shrinkflation', where companies reduce the size of their products without changing the price. The manufacturer, Mars, Incorporated, has stated that they have made updates to their bar sizes and pack formats to reflect consumer demand and external factors such as manufacturing costs and cocoa prices.