To determine if hotdogs are bad, use sensory evaluation. It’s essential to pay attention to color and texture, and smell. If you notice a change in color, brown or grey, or if the meat smells slimy, it’s likely to be spoiled. When in doubt, throw them away. A rotten hot dog can also be dangerous for your health, so it’s always wise to follow the proper storage methods.
If you feel a sour odor, the hotdog is probably wrong. It may also be sluggish. The meat can become slimy. When it swells, it may be contaminated by bacteria.