How to spot shrinkflation
By ShrinkRadar · Updated 2026-10-15 · Figures from our live case library
Shrinkflation is designed to be missed: the price stays, the pack looks the same, only the small number on the label changes. Five habits catch almost all of it.
Net quantity and unit price are the two numbers that matter.
1. Read the net quantity, not the box
Look for “Net Wt.”, “Net contents”, the sheet, roll, pod or load count. Ignore the box size, the “family size” badge and the picture. Packs shrink by getting thinner, adding a deeper punt in the bottom of a jar, or more air in a bag.
2. Compare the unit price on the shelf tag
The small print on the shelf tag gives the price per oz, 100 g, sheet or load. Note it for the things you buy every week. If it jumps while the shelf price stays the same, the pack shrank.
3. Check the other sizes of the same brand
Line up the sizes side by side. A shrink often shows when the “regular” pack is now close to the smaller size, or when the multipack costs more per unit than singles.
4. Do the math
Put the old and new size and price into the shrinkflation calculator. It gives the real change per unit and the fair price for the new pack. A 10% smaller pack at the same price is an 11.1% price rise.
5. Look it up
Search ShrinkRadar for the brand or product. We track 340 products daily and have 687 documented cases, each with a source. The worst offenders list shows the brands caught most often.
Where it happens most
Categories with the most documented cases in our library: Chocolate & Candy (115), Pasta, Rice & Meals (54), Dairy (48), Breakfast Cereals (44), Chips & Snacks (43), Coffee & Tea (43).
Background: what shrinkflation is.
FAQ
How can I tell if a product shrank?
Compare the net quantity on the label (weight, volume or count) with an older pack, a photo, or a documented case. The package itself is not reliable: boxes often keep their height and get thinner, or gain a deeper dent in the bottom.
What is unit price and where do I find it?
Unit price is the price per ounce, 100 g, sheet or load. In most US, UK, EU and Australian supermarkets it is printed in small type on the shelf tag. It is the only fair way to compare packs of different size.
Is the bigger pack always cheaper per unit?
No. Larger or ‘family’ packs are sometimes more expensive per unit than the regular size, especially after a shrink. Check the unit price on the tag every time.
How do I report shrinkflation?
Keep the old and new packs or photos showing the net quantity and the price. Consumer agencies such as Verbraucherzentrale (Germany), Which? (UK) and CHOICE (Australia) collect reports; in the US, Mouse Print* covers cases.