Shane Brennan, (2023) Chief Executive of the Cold Chain Federation looked at this twelve months ago and his opinion then was that smaller suppliers would be put off by "millions of pounds in friction costs", but that larger suppliers would continue business with the UK.
These changes will affect a minority of overall imports from the EU
There's no doubt that costs will increase for certain goods, but "The new food import control model is not all bad. Good people have been working very hard, for many years to try and find innovations. The explicit commitment to a risk-based categorisation of foods means that vast amounts of foods will be classified as low risk, mainly fruits and vegetables, and shelf stable products. By volume, this will be most imports. Importers of low-risk goods will have to do less certification and face low to zero inspections at the UK border."
"There is always opportunity in adversity. This may be the point at which post-Brexit realignments in how we source our food will fully play out. For some the hope will be greater reliance on domestic production, others will see a rebalancing of our import trade away from the EU suppliers to other places in the world. Whether the result is good or bad for the UK economy, our climate goals, or UK consumers, remains to be seen.
This is perhaps the last Brexit-transition sticking plaster that we have to rip off, but don’t believe them when they tell you it’s not going to hurt."
https://ukandeu.ac.uk/what-do-the-new-b ... od-supply/
What we have needed since the 1980s is a Government that would revitalise farming, agriculture, etc to levels where the UK could produce most of the food that we need. That isn't a problem of Brexit and has been worsening for decades