To understand whether corn syrup goes bad, we need to know a bit about what it is and how it's made. Essentially, corn syrup is a liquid sweetener derived from cornstarch, and it's a popular ingredient in many recipes, from baked goods to sauces. It's also a great humectant, which means it helps keep foods moist and fresh.
Now, let's talk about storage, because this is where things can get a little tricky. If you store your corn syrup in a cool, dry place, away from direct sunlight and heat sources, it'll last for a long time - up to 5 years or more. But, if you store it in a warm, humid environment, it can become a breeding ground for mold and bacteria.