TECH Signal 496
Costco hot dog bun shrank 45% since 2023 while sticker price held at $1.50
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Illustration only Photo by Claudio Schwarz on Unsplash
A photogrammetric comparison of Costco hot dogs purchased in 2023 and 2026 found the bun lost roughly 45% of its volume while the nominal $1.50 price stayed fixed, raising the effective cost per cubic inch by about 60%.
This is a worked example of detecting shrinkflation with consumer-grade image analysis, using a known reference object in the scene to register photos taken at different angles and distances. The method is reproducible for any product with an invariant component, and the Costco case shows how a headline price can obscure a substantial real-terms increase.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
The bun volume dropped from an estimated 29.5 cubic inches to 16.1 cubic inches, a 45% reduction, while the sausage was modeled as unchanged at 8 inches.
Costco product listings show replacement bun options weigh 25 to 29% less per roll than the previously listed Francisco International buns, corroborating the image analysis.
The effective price per cubic inch rose from roughly 4.19¢ to 6.69¢, a 60% increase, despite the nominal $1.50 price holding since 1984.
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