So, you’re staring down a loaf of bread, and one slice is looking a little green around the edges. Do you channel your inner hero, toss the offending slice, and hope for the best? Or do you buckle up and get rid of the whole loaf? The debate isn’t as simple as you’d expect.

You might think you’re playing it safe by tossing just the moldy slice, but mold is like an unwanted party guest—it tends to spread where you can’t see. Those spores can be sneaky, making the other slices a risky choice for your next sandwich. According to experts, the safest bet is to say goodbye to the entire loaf to avoid a potential science experiment in your stomach.

But before you go tossing bread left and right, it’s a good moment to reflect on our food habits. Maybe it’s time to reconsider how you store your bread, or perhaps buy smaller quantities. Moldy bread can definitely be a buzzkill, but a little bread TLC might save your dough in more ways than one.

So next time you spot that fuzzy spot, remember: err on the side of caution and swap out the loaf. Your future self (and stomach) will thank you!