Also what do you see?
this post was submitted on 09 Feb 2026
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There is two things going on there.
First if you look closely you can see holes in the spud. This is insect damage, likely caused by a wireworm (larval form of a clickbeetle species.)
Second is a physiological damage in storage/shipping causing the black color. This is not blight or another fungus, but the tubers reaction to suboptimal storage condition (not enough O2).
https://www.journals.uchicago.edu/doi/pdf/10.1086/333609
Oh that makes sense. I wanted to bake them in the oven but most of them had this kind of pattern. They weren't smelly or anything and had a normal consistency.