How serious is food inflation in Canada?

https://www.netnewsledger.com/2021/09/23/how-serious-is-food-inflation-in-canada/

The investigation continues but evidence suggesting that Statistics Canada is underestimating food inflation is mounting.

For example, while the CPI report indicates that the price of ketchup has dropped by 5.9 per cent, BetterCart suggests ketchup is up by 7.3 per cent since January. Potatoes are 11.5 per cent more expensive than in January versus the 3.7 per cent suggested by the CPI. Frozen french fries are similarly more expensive – 26.2 per cent more expensive since January, not 5.9 per cent as the CPI reports. Bananas are 4.9 per cent more expensive according to BetterCart, not 0.1 per cent more.

Another issue is shrinkflation, which is about shrinking packaging sizes and offering smaller quantities while retail prices remain intact.

While a Statistics Canada website talks about how it measures the impact of shrinkflation, about 70 per cent of products in its food basket are listed at quantities that no longer exist in the market.