How Food Prices Have Changed During the Biden Administration - The New York Times

Then, in early 2022, Russia's invasion of Ukraine pushed up energy prices and the cost of commodities like grains and vegetable oils. That raised the costs of producing and transporting food products. More recently, droughts and an avian flu outbreak have further strained food supplies… 

Those increases have largely been driven by the cost of transporting, packaging and processing food products, said David Ortega, a food economist at Michigan State University. "The vast majority of the cost of food is because of things that happen once that food leaves the farm gate."…

https://www.nytimes.com/2024/08/13/business/economy/inflation-food-prices.html