Grocery price inflation has slowed to its lowest rate since December 2024 as the World Cup and heatwaves drove the highest number of supermarket trips in more than five years. Supermarket prices were 2.6% higher than a year ago over the four weeks to July 12, a significant slowing from June's 3% and the lowest rate since December 2024, figures from Worldpanel by Numerator show. As another heatwave hit, household spending on burgers rose 25%, frozen lolly sales were up 17%, and bottled water sales soared by 23%. Wimbledon fortnight saw £77 million spent on strawberries and £21 million on cream. Sainsbury's also gained market share, moving from 15.1% last year to 15.2% in the last 12 weeks, with sales growing by 2.8%, while sales at Tesco were up by 1.7% with a market share of 27.9%.