To make sure your light corn syrup stays perfect, store it in a cool, dark place with the lid tightly sealed. Your pantry is ideal. Don’t refrigerate it—cold temperatures actually encourage crystallization. (Yes, science is ironic that way.)
Does Corn Syrup Go Bad? How Long Does Corn Syrup Last?
If you do get crystals, just pop the bottle in a bowl of warm water for 10-15 minutes. Swirl it around gently, and the crystals will dissolve. Boom—liquid gold is back to its non-ironic, syrupy glory.
And never dip a wet spoon into the bottle. You’re just asking for a mold party. Use a dry utensil every time. Please. For the love of pie.