You can cut into it to be sure it is brown. With a meat thermometer, you can measure the proper temperature for its being done (180?). Finally, an experienced cook will note by the feel of the sausage that it is done.
The cooked sausage will be cooked. The other will not.
It is past the 'Use By' or 'Best Before' date on the package in which it came. It smells bad or it has changed colour.
It would probably be red or taste really bad.
If sausage is bad, it will usually have a bad smell. It may also have mold growing on it, as well.
You can tell that a ham has gone bad by looking at it and smelling it. If it smells strange or looks like it has mold, it is bad.
If its rotten
it is bad if it is bad. if not, it is most likely good.
If u have diarrhea after eating it.
Actually, you honestly can not
your car will not start
How can you tell if a crank sensor has gone bad on a 1994 Nissan altima
It will have a greenish tint to it. And it will be a little slimy and have a bad smell
sausage patty but both are bad for you.
Swap it with one you know is good.
Try smelling it if you still dont know, pour some into a glass and see if it looks clumpy or thick. Dont drink after its gone bad!
It will stink! Sour smelling.