Costco "Wild" Salmon?
Yesterday, I bought a salmon fillet labeled "wild sockeye, product of USA" at Costco in Brooklyn. When I was preparing it, I dried it with a paper towel and noticed that the paper towel was a bit pink, where it had touched the fish. Does this transfer of color mean that the salmon was actually farmed (with added color)?
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According to a Consumer Reports story this summer, almost all salmon labelled as wild really is wild during the main season (May - October). Outside of that time period, most of the salmon they tested was farmed.
If you salt salmon, wild or farmed, it will render pinkish juice so that's not a test. The added color in farmed salmon comes from the food they're fed so it doesn't leach out like a dye.
I've bought wild salmon from Costco several times this summer and always been pleased with it.