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Dark Spots On Your Potatoes? Here's What's Causing Them By Ashley M. Jacobs Oct. 29, 2025 4:20 pm EST

Ah, the humble potato. As the hobbits once said, "Boil 'em, mash 'em, stick 'em in a stew" — the possibilities are endless. All too often, though, you might see dark spots on your potatoes. Don't worry, they're harmless so the potato is still edible. Aptly called "blackspots," those black spots are just bruises from where the potato was injured any time between harvesting and getting stocked in grocery store bins.

When a potato is banged up, the cells inside get damaged. This triggers a reaction where a natural compound called tyrosine reacts with the potato's enzymes and oxygen from the air to produce melanin (yes, the same pigment found in human skin), whic

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