35-Year-Old Vintage Mars Bar Sparks Viral Global Debate on Shrinkflation and Inflation. A surprising discovery inside a hoarded house in Scunthorpe, United Kingdom, has triggered a viral global debate over “shrinkflation” and corporate pricing. Victoria Gordon, operator of a local cleaning service, unearthed a perfectly preserved 35-year-old vintage Mars Bar from 1991.
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The striking physical comparison between the 1991 vintage bar and today’s 2026 version has reignited outrage among consumers worldwide regarding how drastically chocolate portion sizes have shrunk while retail prices have soared.
The Comparison: 1991 vs. 2026
After finding the vintage wrapper, Gordon placed the 1991 bar side-by-side with a standard 2026 Mars Bar purchased from a local supermarket. The visual difference was immediate and stark:
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Weight Cut by 36%: The 1991 Mars Bar weighed in at 62.5 grams, spanning almost the entire length of an adult hand. In contrast, today’s standard Mars Bar weighs just 40 grams.
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Price Skyrockets: In 1992, the 62.5g bar retailed for approximately 25p (roughly equivalent to 70p today when adjusted for general inflation). Today, a 40g bar costs £1.20 at major retail chains—making chocolate nearly three times as expensive per gram compared to three decades ago.
What is Shrinkflation?
Shrinkflation refers to the practice of reducing a product’s size or quantity while keeping its retail price the same—or even increasing it. Manufacturers often utilize this strategy to offset rising raw material costs without deterring budget-conscious consumers with a sudden, sharp price hike.
However, the viral photo of the two bars side-by-side has brought consumer frustration to a boiling point, with thousands of social media users sharing their own experiences of shrinking products across snacks, household goods, and toiletries.
Corporate Response: Cocoa Costs and Consumer Demand
In response to the viral debate, a spokesperson for Mars addressed the size reduction, pointing to shifts in manufacturing expenses and broader economic pressures:
“Over the last 35 years, we have made a number of updates to our bar sizes and pack formats to reflect consumer demand, alongside considering wider external factors such as manufacturing costs and the price of cocoa.”
Global cocoa supply chains have faced unprecedented pressure in recent years due to adverse weather conditions in West Africa, rising transport tariffs, and inflation across global food supply networks, forcing major confectionery brands to rethink product sizing.
