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With 938 posts, chances are there's already an answer to your question. Please try searching below before submitting a question to Dr. Potato. Use multiple words to help narrow down the results. For example, search for "potatoes" and "group" if looking for an answer on cooking potatoes for large groups.
I baked a white spud potato and when done I cut it open and I noticed crystallized grainy sugary substance. What is that?
What you’re describing is sugar that very occasionally concentrates withing the potato core, usually following a series of extreme warm and below 41 F degrees temperature swings. This will sometimes convert some starch within the potato to convert to sugar. Typically this manifests itself in a discolored core center, but can also occur with little visible evidence of the conversion. In any case, this is harmless and the potato can still be prepared as desired, albeit with a slightly sweet flavor imparted.
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Established in 1937, the Idaho Potato Commission (IPC) is a state agency that is responsible for promoting and protecting the famous "Grown in Idaho®" seal, a federally registered trademark that assures consumers they are purchasing genuine, top-quality Idaho® potatoes. Idaho's ideal growing conditions, including rich, volcanic soil, climate and irrigation differentiate Idaho® potatoes from potatoes grown in other states.
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