Eyeing leftovers or a bag of apples and wondering if they're still edible? Sometimes it can be tricky to figure out whether something is still good or past its prime, and it makes a big difference whether you've stored it in the pantry, fridge, or freezer. So, just how long before you finally have to part with that lasagna?

Mold Guide has created a helpful chart to help figure out what's good to eat and what needs to be thrown away. Most foods should not be eaten, they caution, if there is even a little bit of mold—with the exception of hard cheese and dried meats. So before you dig into that week-old chocolate cake, check out the infographic below.