You haven’t imagined it. The chocolate bar is lighter, the crisp packet is airier, the “family” pack feeds slightly less family than it used to. The practice is called shrinkflation — shrinking a product instead of raising its price — and it’s one of the oldest quiet moves in retail.
Why companies shrink instead of charging more
The logic is behavioural. Decades of consumer research show shoppers are sharply sensitive to the number on the shelf label and remarkably insensitive to the number on the back of the pack. Raise a price by 10% and people notice, complain, switch brands. Cut the contents by 10% and most of us sail past. Same margin recovered, no backlash — usually.
The tactic surges whenever manufacturers’ own costs spike, which is why the inflation wave of 2021–2023 turned “shrinkflation” from an economist’s term — popularised by analyst Pippa Malmgren — into something politicians started saying out loud.
The classic moves to watch for
- Same box, less inside. Packaging dimensions stay identical; the weight on the back quietly drops.
- The redesign. A “new look!” often accompanies a new, smaller size — the redesign gives the change somewhere to hide.
- Fewer units. Toilet rolls with fewer sheets, tea boxes with fewer bags, multipacks of five where there were six.
- The dimple. Jars and bottles gain a deeper indent in the base — same silhouette on the shelf, less volume inside.
- Skimpflation. The subtler cousin: the size stays, but a costly ingredient is reduced or swapped. Check the ingredient order — it’s listed by weight.
The one number that doesn’t lie
Ignore the pack price. Read the unit price — the small “per 100g” or “per litre” figure on the shelf label. It’s the only number that lets you compare a shrunken product against its rivals and its own past self. If your usual brand’s per-100g price jumped while the pack price “held,” you’ve found shrinkflation in the wild.
Regulators are catching up
The pushback has begun. French supermarket chain Carrefour made headlines in 2023 by shelf-labelling products that had shrunk, naming brands directly. France then went further, introducing rules requiring stores to flag downsized products to shoppers. Consumer groups elsewhere publish regular “shrinkflation lists,” and the practice — while entirely legal when the label is accurate — now carries real reputational risk.
Until labelling like that is everywhere, the defence is the boring one: know your unit prices for the ten things you actually buy every week. The pack can lie with its shape. The per-100g figure can’t.
