Let's say you buy packaged fish from the supermarket, which was kept cool, but not frozen, by their commercial refrigerators.
The wisest thing to do would be to prepare and consume this at the earliest convenience, as it would be most fresh, but what if you wanted to keep it stored at home for later?
Is it okay to store packaged supermarket-fish in your freezer, especially after it was merely cooled by a normal store refrigeration system, and it had time in the car to gain some temperature?
Does it ruin the texture/flavour of the meat? Is it hygienic/sanitary/unhealthy to do this?
I'm looking to buy a bunch of fish (and shellfish) for the weekend, as I'll have no time/means of going to the supermarket the day of the meal.
Edit: I am aware of, and often practise, the method of buying frozen fish and storing it at home in the freezer, but in this example, I'm referring to fish that was not frozen in the supermarket.