The increasing variability in retail formats and retailer-led point-of differentiation presents challenges for food packaging. Sizes of retail stores can vary from the 2,000 sq ft of Tesco Express in the United Kingdom to Walmart stores in the United States that can be as big as 100,000 sq ft. This variation in store size means that sizes of packaged goods can also vary widely. Packages sold in club stores are specifically designed in large formats, but the retail formats in which standard food …