Why Your Chocolate Bar Got Smaller

"Shrinkflation" is when a product's size or quantity shrinks while its price stays the same — an effective price increase that doesn't show up on the shelf label.

When the cost of raw materials, energy, packaging, or transport rises, a manufacturer has a limited set of options: raise the shelf price, accept a smaller profit margin, or reduce the amount of product in the packaging while charging the same price. The third option is often preferred commercially, because a price increase is immediately visible and can push shoppers toward a cheaper rival brand, while a smaller pack size is much less likely to be noticed at the point of purchase.

The effect on the shopper is mathematically identical to a price rise — the same money now buys less product — but it doesn't register in the same way psychologically, and doesn't show up as clearly in price-comparison tools that track the shelf price of a named product rather than its price per gram or per unit.

It's a long-standing practice, but became particularly visible to consumers during the high-inflation period of 2022–2023, when input costs for food and household goods manufacturers rose sharply and quickly across the board.