Shrinkflation: the package got smaller, but the price stayed the same
A liter of milk has turned into 900 milliliters, a dozen eggs into nine, and a chocolate bar has shrunk from 100 grams to 85. The price, meanwhile, has either stayed the same or increased slightly. This tactic is called shrinkflation; it is legal, and the only protection against it is a single number on the price tag that almost no one looks at.
Why they reduce volume instead of raising the price
The reason lies in how perception works. A shopper remembers the price: "milk was a hundred, now it's a hundred and twenty"—this is a noticeable event, and it changes their choice. Almost no one remembers the volume, and the label still looks the same: the same design, the same spot on the shelf, the same familiar bottle.
Economically, it is the same thing—the price per unit of product has increased. Psychologically, these are different events, and the latter goes unnoticed.
An additional argument for the manufacturer: the packaging often remains the same size. The bottle is the same, but with thicker walls or a concave bottom; the pack is the same, but there is more air inside. Visually, nothing has changed.
Where it is most common
| Category | Typical transition |
|---|---|
| Milk and kefir | 1 L → 900, 930 or 950 ml |
| Sour cream and yogurt | 500 g → 450 or 400 g |
| Eggs | 10 pcs → 9 pcs |
| Chocolate | 100 g → 90, 85 or 80 g |
| Grains and pasta | 1 kg → 900 or 800 g |
| Coffee | 250 g → 220 or 200 g |
| Chips and snacks | mass down with the same pack size |
| Juices | 1 L → 950 or 900 ml |
What all these items have in common is that they are purchased regularly and out of habit, without comparison. Where the shopper does the math—for example, during a large household grocery run—the tactic works less effectively.
How to spot it in ten seconds
There is only one answer: price per kilogram or per liter. It is required to be listed on the price tag, usually in small print under the main price. This is the only number on the shelf that is comparable between packages of different volumes, and the only one that shrinkflation cannot hide.
For more details on how to use it and where it might be misleading, see our article on price per kilogram.
The second trick: look at the mass, not the package. "Large packaging" refers to the cardboard, not the contents.
What changes along with the volume
Reducing mass often does not happen in isolation, and this is more important than the price itself.
- The recipe changes. Simultaneously with the mass, the composition is cheapened: the share of meat goes down, while the share of water and vegetable protein goes up. Examples are analyzed in the article on sausage composition.
- The product category changes. Butter becomes a spread, condensed milk becomes a milk-containing product; the name on the front remains almost the same. See our articles on butter and spreads and on condensed milk.
- Diet calculations change. If you count calories "by the pack," the reduction in mass quietly shifts your count: your usual "half-pack of cottage cheese" now weighs 200 g instead of 250 g.
The reverse tactic: the packaging grew, but the contents stayed the same
This happens too. A large box with an internal tray, a deep indentation in the bottom of a bottle, double walls, lots of air in a bag of snacks. There are technological justifications for this—protection from damage, space for gas in modified atmosphere packaging—but the effect on perception is the same.
It is checked the same way: by the mass on the price tag, not by your eyes.
What to do
- Calculate by kilogram, not by the pack. This is a five-second habit that completely neutralizes the tactic.
- Keep track of familiar masses. Pick three or four items you buy every week: milk, coffee, grains. A change is only noticeable against the background of what you remember.
- Compare within the shelf, not with your memory. On adjacent items, the price per kilogram differs more noticeably than the price tags suggest.
- Check the composition when the mass changes. Often, this is part of the same recipe overhaul.
Frequently asked questions
- What is shrinkflation?
- A reduction in the weight or volume of a product while maintaining the same price and packaging appearance. Economically, this is a price increase per unit of product, but it is perceived differently because the buyer remembers the price and almost never remembers the volume.
- Is this legal?
- Yes, provided that the actual weight or volume is indicated on the packaging and the price tag shows the price per kilogram or liter. There are no requirements to maintain a standard volume.
- How can I quickly spot a reduction in package size?
- Check the price per kilogram or liter—it is indicated on the price tag in small print and allows for comparison between packages of different volumes. This is the only figure on the shelf that this tactic does not hide.
- In which categories does this occur most often?
- In products bought regularly and out of habit: milk and kefir, sour cream and yogurt, eggs, chocolate, grains, coffee, snacks, and juices. Where the buyer calculates, the tactic works less effectively.
- Does this affect calorie counting?
- Yes, if you calculate "by the package." The usual "half-pack of cottage cheese" weighs 200 g instead of 250 g after a reduction in mass, and the calculation shifts quietly. It is easier to calculate by weight or check the mass on the package each time.
Read next
- Price per kilogram: the only comparable figure on a price tag — There are two numbers on a price tag.
- What to look for in an ingredient list in ten seconds — Reading an entire ingredient list at the shelf is impossible: the print is small, and there is no time.
- How the composition of sausage has changed and what to look for in it now — Sausage is the most convenient product for analyzing how recipes change: the changes are documented by percentages right on the packaging.
This article is for general information. It is not medical advice, a diagnosis, or a prescription for treatment or a diet, and it does not replace a consultation with your doctor. If you have a health condition, are pregnant, take medication, or follow a diet prescribed to you, decisions about food belong with your doctor.
Figures from regulations, guidelines and studies are given as they stood when this article was prepared and may since have changed; check them against the primary sources. This article is not advertising, an offer, or individual advice, and neither the author nor the site owner is responsible for decisions taken on the basis of it.