It's only been a few days, but your bread is already moldy. Can you slice off the mold and eat the rest? I love bread. There’s always a loaf sitting in a bread basket on my kitchen counter. Sometimes ...

It’s lunchtime, your stomach is growling and you’ve decided to make a sandwich. But as soon as you head to the pantry and open the bread bag, you see it: a whitish, greenish spot. Ugh — it’s mold.

Mold has all the hallmarks of a cute microorganism: it’s small, colorful, and fuzzy. But when you open your bag of sandwich bread to find that small splotches of the stuff have preemptively colonized ...