Question: how long can you eat leftover guacamole?
Answer: Once opened, store-bought guacamole usually lasts 1-2 days. Homemade guacamole also usually lasts 1-2 days. You'll know it's gone bad when it has a substantial puddle of brown liquid and the layers below the surface have lost their vibrant green hue. That's when it's time to throw it out.