is bad after the "Sale by" date at stores or places of purchase. That is why they have to remove it from the shelves. However, if you bring
it home before the "Sale by date" and freeze it, then it can usually last for a couple of weeks as long as it stays frozen
If, you unfreeze it and it has a strong fishy odor, cloudy eyes or it is no longer firm to the touch then by no means eat
it as sushi
or cooked. By placing it in salty ice water for a half hour or more does nothing at all as far as making it safe
. It will remove some of the smell and firm it up, however it is still very unsafe to eat
, and by no means would a store, fishery plantation, stockyard, health official, ocean fisherman or I tell you that it was safe
for human consumption.