Based on the data from the food price data hub that you provided, I think it's clear that the entire sector is doing its utmost to ensure food affordability. However, everyone has to accept the reality of fuel prices, including diesel. From farm to table, several tanks of diesel are needed, particularly for tractors, trucks and distribution. If we want to address food affordability, we'll have to find solutions for the cost of energy. This is a message for the government: If it still wants to cut taxes, that would be welcome news for consumers.
As you said, this website is a government initiative. I don't remember who announced it. Has the government already announced it, or is it purely a departmental initiative? Sometimes, departments come up with good initiatives, too.
