tropics wrote:Khaopaat wrote:it's possible that salmon isn't necessarily smoked for preservation purposes, but because it's delicious
fair point, hadn't thought of that
Exactly. Cold smoke is akin to a condiment. It has only some minor preserving properties. The salt-intensive curing process applied before the cold smoke probably preserves the fish better than the smoke. But still, with a piece of fresh fish, there's only so long these manipulations will add to the shelf life.
And of course, the labelling also answers to a prospective liability issue. The fish may very well last longer than 4 days after opening but Costco probably doesn't want to recommend anything longer, just in case. The recommendation on the package probably reflects the worst-case outcome in their shelf-life studies, which is why it's used.
=R=
By protecting others, you save yourself. If you only think of yourself, you'll only destroy yourself. --Kambei Shimada
Every human interaction is an opportunity for disappointment --RS
There's a horse loose in a hospital --JM
That don't impress me much --Shania Twain