How would you know if a fish as been contaminated?

Answer 1

Well, obviously, if there is a rotten smell to it, just like any other meat, you wouldn't want to eat it. If the color has changed, greyed, you shouldn't eat it.

If you are wanting to know how to SHOP for fresh fish and avoid the older stuff that's on its way to going bad, the first indicator is smell. The more it smells like fish, the longer its been out of the water. You're looking for more of a sea water smell, and not fish smell. Look for firm, somewhat clear looking flesh, if its mushy or off color, you might want to select something else.

Answer 2

Fresh fish does not smell of fish... if it smells strongly of fish don't cook it.

If the head is still on the fish, the eyes should be clear and should stand out (a bit like human eyes) and not be dull and sunken back into the head.

The fist should feel smooth if you move your hand along it from head to tail, and should not be feel slimy.

Answer 3

touch it in the middle (with clean fingers of course!) and if it is too hot to touch for more than a second, then it is cooked. with tuna steak though, some people like it rare, it all depends on what fish you are cooking.

Answer 4

It will have a really bad smell. It can get slimy. It will change colors, like darker or a shade of green.

Answer 5

You can tell that fish has gone bad if it has changed color. You can also tell if fish has gone bad if it smells bad.

Answer 6

Usually you can tell by the smell of the meat.

Answer 7

FRESH fish should NEVER smell