Also known as 'white skin purple flesh sweet potatoes' or just 'purple-fleshed sweet potatoes', the purple sweet potato is prized for its naturally occurring purple flesh. You won't find it as easily as regular gold sweet potato, instead look out for it at your local green grocer or farmer's market.
Can you eat potatoes that are purple inside?
In fact, the variety isn't a concern right now, but my recommendation is this: Do not eat the potato if it has deep blue or purple “veins”. Some potatoes can have a pink or reddish color inside, which can be normal. It's also very common to find potatoes with a green color under the skin.
What does it mean when a potato is purple inside?
The purple patch could be because of bad handling and the starch being bruised. The iodine content in the potato being high and it reacting with starch to give a purple colour. It may be wiser not to consume this potato.
Are purple potatoes poisonous?
Their color is a practical concern: millennia ago, their ancestors grew on high Andean mountainsides with direct exposure to sunlight -- and as we'll discuss later, sunlight causes higher levels of toxic solanine in potatoes. The dark skin and flesh of purple and blue potatoes acts as a natural shade from the sun.
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