I wonder if they fill the packet with nitrogen to keep it "fresh" the same as they do with fruit salads. Not a big fan of pre-packaged salad for similar reasons.
I always have take a tin of tuna when I want something extra with my salad. Fresher, plus you know where it's come from & what's in it.
Wrong on so many levels, packing in N2 doesn’t make something out of date “fresh”, it’s not colouring mechanically reclaimed meat pink for example - it just massively reduces the ability of bugs to start decomposing stuff due to the lack of oxygen. In a similar way to freezing stuff straight away.
It’s a preservation technique, not a reverse/hiding degrading technique. N2 is literally all around you all day and does nothing bad to you (excludes deep sea diving) what with it being very inert and all that.
As for picking tuna for freshness… I’m sure that factory ship way out in the seas races back at high speed with its first and only catch to keep it fresh, and then the tin is raced from the factory to your supermarket shelf where you pick it up and use it quicker than you would with pre-packed chicken.
Same issues for salmon as tuna, except you have more chance of a mass farmed fish from S.America that is pumped full of antibiotics and troubled with lice.
Christ, I’ve bitten haven’t I – Troll.