With the right storage, it’s possible for you to use this pantry ingredient for years.
So, does cornstarch go bad, or can you use it past the date marked on the box?
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Does Cornstarch Go Bad?
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When substituting cornstarch for flour, cut the amount used by half.
For example, if the recipe calls for 1 Tbsp of flour, use 1/2 Tbsp of cornstarch.
Cornstarch and corn flour are different products used in varying ways when cooking or baking.
Corn flour is made from corn kernels and is full of nutrients like protein and fiber.
Cornstarch is a fine powder used for thickening foods and is essentially a starch comprised of carbohydrates.
Strantz, A. et al.
“Bacterial Survival on Cornstarch-Containing Polyethylene Film Held Under Food Storage Conditions.
“Journal of Food Protection.
