The Hong Kong Consumer Council (COC) has issued a stinging report detailing pervasive “shrinkflation”—the reduction of product net weight or volume while prices hold steady or increase—across a majority of common supermarket items, effectively implementing hidden price hikes for consumers over the past three and a half years. The investigative findings, published in the latest issue of their Choice magazine, revealed that more than 90% of the 62 goods examined had decreased in content, with some items experiencing volume reductions by as much as 30% and resulting in unit price surges exceeding 26%. The Council is urging shoppers to adopt vigilant comparison strategies to combat these covert inflationary maneuvers.
Unpacking the Scale of Shrinkflation
The investigation analyzed pricing data and content changes for 62 products—comprising 43 food items, 17 daily necessities, and 2 pet foods—tracking changes between January 2021 and July 2024 using data from the Council’s “Online Price Watch.” The results showed a significant trend: 58 products, representing over 90% of the sample, saw their capacity or net weight decline. The reductions ranged from minor adjustments of 1.3% up to a sharp 30% for one brand of cornflakes. Alarmingly, three products were found to have undergone content reductions twice within a span of less than three years, including two types of sandwich cookies and a brand of dry cat food, the latter seeing a cumulative reduction of approximately 16.7%.
The highest instances of content reduction were concentrated in discretionary purchases, specifically candy, biscuits, and snacks, followed by personal care items, underscoring manufacturers’ efforts to minimize noticeable consumer impact while managing rising production costs.
Hidden Price Hikes Outpace Volume Loss
While reducing content, manufacturers frequently failed to adjust the sticker price, compounding the effective cost increase for consumers. Of the 39 products where manufacturers provided a suggested retail price, 16 items experienced a “de facto price increase” of over 10% when calculated based on the price per unit (per 10g, ml, or piece).
The most severe example identified was a chocolate-filled orange biscuit, which reduced its weight from 176g to 154g. Coupled with a simultaneously increased retail price, the biscuit’s per-unit cost jumped by a staggering 26.2%. Furthermore, analysis of actual retail prices one month after content changes showed that the average unit price for 85% of the sampled products had risen, with one deep muscle rub seeing its average per-unit price increase by over 100%. This long-term trend persisted, with 95% of the sampled items demonstrating higher average unit prices six months after the volume alteration.
Consumer Defense Strategies Against Stealth Price Shifts
The Consumer Council acknowledges that shrinkflation is a subtle marketing tactic designed to evade consumer attention, who are generally more sensitive to overt price increases than volume decreases. To help shoppers make informed choices and retain purchasing power, the COC recommends three key strategies:
- Calculate Unit Price: Always compare the cost per unit (e.g., per 100g or 100ml) rather than the overall package price. This provides an accurate measure of value.
- Observe Packaging Clues: Pay close attention to familiar brands. Changes in package design, shape, or the inclusion of terms like “new formula” or “upgrade” often signal a change in product quantity.
- Utilize Online Resources: Leverage the COC’s Online Price Watch tool, which lists both the full price and the per-unit price for numerous products, allowing consumers to compare prices effectively before shopping.
Ultimately, the findings serve as a critical reminder that navigating the grocery aisles requires consumer vigilance. As global inflationary pressures persist, shoppers must look beyond surface prices and scrutinize product weight and volume to ensure they are getting fair value for their dollar.