Why Did My Sweet Potatoes Turn Brown When Cooked?
Sweet potatoes turned brown when cooked because of a chemical reaction called enzymatic browning. Enzymatic browning occurs when the enzymes in sweet potatoes react with oxygen in the air, creating brown pigments called melanin. This reaction can also be accelerated by heat. The browning does not affect the flavor or nutritional value of the sweet potatoes, but it can affect their appearance. To prevent this, you can reduce the cooking time, cover them with foil, and store them in a vacuum-sealed container.