If you see a potato with green spots, it usually means the potato has been exposed to light and has started producing a natural toxin.That green color indicates the presence of Solanine, a toxic glycoalkaloid found in potatoes.
⚠️ Is it safe to eat?
- Small green patches: not ideal, but sometimes you can cut them off deeply and use the rest
- Heavily green potato: do not eat it
- Bitter taste: strong warning sign—spit it out if it tastes bitter
🤢 Why it’s risky
High levels of solanine can cause:
- Nausea or vomiting
- Stomach cramps
- Headache
- Dizziness
- In severe cases, neurological symptoms
🟢 Green spots vs sprouts
- Green color: light exposure → solanine increase
- Sprouts (“eyes” growing): also contain solanine and should be removed
🥔 What you should do
- Cut off green areas deeply (not just surface peeling)
- Remove all sprouts
- If more than ~25% is green → throw it away
- Store potatoes in a cool, dark, dry place to prevent greening
💡 Prevention tip
Keep potatoes:
- Away from sunlight
- In a ventilated basket or paper bag (not plastic)
- Not in the fridge (can affect texture and taste)
If you want, I can also explain how to safely store potatoes for weeks without greening or sprouting.
