Is Guacamole Bad If It Turns Dark?
Guacamole is not necessarily bad if it turns dark, but it can be an indication that it has started to spoil or oxidize. The darkening is a result of the avocado coming into contact with air, which causes a chemical reaction that turns it brown. If the guacamole has a sour smell, slimy texture, or a bitter taste, then it is best to discard it. However, if it still looks and smells fresh, it is safe to consume. Adding lime juice or storing it with plastic wrap can help slow down the oxidation process and prolong its shelf life.