How To Tell If Cooked Ground Beef Is Bad?
There are few signs that your raw ground beef might be wrong. It should be bright red on the outside and brown inside. If the surface is grayish or has developed mold, it should be thrown out. You should also discard it if it smells or feels funny. If it turns moldy, it is most likely spoiled and should be discarded. If it has an off-odor, it is best to throw it out.
First, you can look at its color. The interior and exterior of ground beef should be similar in color.