Can you eat a 3 day old hot dog?

As a general rule, it is not advisable to eat hot dogs that have been left out at room temperature for more than 2 hours, or refrigerated for more than 3 days. Hot dogs are a perishable food item and can easily become spoiled by bacteria, which can cause foodborne illnesses.

If you are unsure whether a hot dog is still safe to eat, it is best to err on the side of caution and discard it.