To be brutally frank in my response, I am certainly no adherent of Heinz in any shape or form and feel that brand has devolved very significantly in quality and taste since the turn of the century and, indeed, was a far better brand in the 80s and 90s. As far as their baked beans go, if buying in the British Isles, I would always plump for HP or Branston, which I always felt were much tastier. In Bulgaria, I by far prefer the Lidl version to that of Kaufland and prefer the Lidl version over and above any other baked bean I have ever tried so am now a staunch adherent.
Porage oats, I have no preference and am generally as happy as a sandboy with Bulgarian own brands.
As far as teas go, all the teas blended in the UK have devolved over the past 20 years or so except Yorkshire Tea, which, to my taste, may even possibly have improved, so I must insist on that variety. I have endeavoured to taste all the other supermarket brands in Bulgaria and the UK and find no other brands compare. PG Tips and Tetley certainly fall into the by far inferior category as do Ahmad, Lipton, etc. Twinings in all it's glorious forms, still remains highly palatable and oftentimes a viable alternative to Yorkshire in times of need.
As far as corned beef goes, I must confess that this is one of the ultra processed foods I do have an indefatigable predeliction for in it's canned form. Actually, I would not buy Princes as I feel that brand is now devalued and devolved in the same way that Heinz has been and is now really mainly pap. I fear I am totally and unwholesomely addicted to corned beef (ideally the Asda own brand version if truth be told). I find nothing to compare in Bulgaria. The German version sometimes found in Lidl is no comparison to the selection available in the British Isles. I find it is an indulgence I avail myself of reasonably illiberally, so do not feel it is affecting my health adversely to any great extent. There definitely are good meats available in Bulgaria, which I will purchase, but they are not corned beef, which is more of an art form.
Although there are versions of canned salmon in Bulgaria, they seem very crude and malformed in comparison with the brands available in the British Isles. Not a UPF, so not injurious to health, fortunately. I have to state that I am especially fond of the Sainsbury own brand Pink Salmon over John West, though I do not feel that the John West brand has devolved as have Heinz and Princes.
Frozen or chilled fish are of no use to me generally (or at least in summer) as I have not used a refrigerator or freezer in well over 20 years. In Bulgaria, I just hang goods out of the window in Winter when necessary as many East Europeans are inclined to do.