Everything seems to have increased in price. The one I know for certain is Douwe Egberts dark instant coffee. It used to be a £4.50 in lockdown, went up to £5 beginning of the year and now it's £6. Only instant coffee I like and I appreciate it is not a necessity but it's a very high increase. I'm probably paying for the jar but I tried every single instant coffee, including Egberts other types and I don't like any of them.
I haven't worked out if pods or ground coffee has gone up yet, I always forget to check.
As an aside, I expect there will be less choices and most the artisan type tea, food, bread, coffee, cider. Chocolate etc will disappear.