France's second largest grocer has put customers on notice, according to https://www.bbc.com/news, by posting stickers on its shelves warning shoppers of "shrinkflation" - where content packages are smaller while prices are not.
"Carrefour said it wanted to put pressure on the firms making products to keep prices down," the BBC reported.
Among the products named and shamed are Lipton Ice Tea, Lindt chocolate and Viennetta ice cream.
The BBC report indicates shoppers are being told if bottles are smaller or pack contents lighter.
"Obviously, the aim in stigmatizing these products is to be able to tell manufacturers to rethink their pricing policy," Stefen Bompais, director of client communications at Carrefour, told the BBC.
Carrefour has identified 26 products that have shrunk, with no reduction in price to match, made by Nestle, PepsiCo and Unilever.
According to the BBC, Carrefour said Guigoz infant milk formula produced by Nestle had gone from a pack size of 900g to 830g, while a bottle of sugar-free peach-flavoured Lipton Ice Tea, produced by PepsiCo, shrank to 1.25 litres from 1.5 litres, and Viennetta, made by Unilever, has shrunk from 350g to 320g.
The report said that the grocer is highlighting the products in question with signs on the shelves reading: "This product has seen its volume/weight fall and the effective price charged by the supplier rise."
Unilever, PepsiCo and Nestle have not commented on Carrefour's move.
