Pack sizes shrink but prices remain the same, Which? finds Which?, the consumer magazine, found that over a dozen kitchen cupboard staples - from Kellogg's Coco Pops to Branston Pickle - have shrunk in size in recent months. However the prices have remained the same. In other examples, a bag a Fairy All-in-one Dishwasher Tablets used to contain 28 tablets but now contains 26. The price in supermarkets, however, has not been dropped. "If the carrier bags full of your weekly shopping feel lighter, but the total on the receipt seems as high as ever, it's not your imagination," Which? said. The consumer group said that most of the manufacturers that it spoke to said that sizes have fallen as means of keeping prices down at a time of rising costs. Many manufacturers said that supermarkets dictate the final price, rather than the food companies. Supermarkets, meanwhile, said that manufacturers had reduced their sizes and the retailers had based their own prices on the wholesale cost of buying the goods.