Why Is My White Sweet Potato Turning Black?
I started cutting a white sweet potato. But within minutes an area on the outside of the potato started turning black/brown. Other sides of the cubed chunks didn't seem as affected. Here's a photo with the black and better bits separated. Even the good ones were rapidly browning and oxidizing in a speckled fashion.
Best Answer
It is, as you said, oxidation. As soon as you cut them, put them in a bowl under water. Kills the oxygen supply/reaction.
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Quick Answer about "Why Is My White Sweet Potato Turning Black?"
One of those phenols, called chlorogenic acid, is the culprit that makes sweet potatoes -- and sometimes, regular potatoes -- darken when they're cooked. The chlorogenic acid combines with iron ions in the potato and oxygen absorbed from the atmosphere and cooking water, creating the dark pigment.Is it safe to eat sweet potatoes with black spots?
Dubbed as the internal black spots, these spots are \u201cbruising\u201d that occurs when potatoes tend to lie against each other for an extended period. Worrisome as they may seem, sweet potatoes with these spots are still safe to eat. Simply get rid of the sport.How can you tell if a white sweet potato is bad?
If the sweet potatoes start turning soft or mushy, they have gone bad. The same thing is true for sweet potatoes that turned a deep shade of brown to black. Check for weird growths through the skin or the presence of mold. If the sweet potatoes have developed an off-odor, toss the tubers in the trash.How do you stop sweet potatoes going black?
To avoid the color change in the sweet potato when you are peeling, put them directly into a bowl or pot of cold water. You can further prevent blackening after peeling by adding a little salt, vinegar, or lemon juice.What happens when a potato turns black?
This process, which is called oxidation, happens because potatoes are a naturally starchy vegetable. And when exposed to oxygen, starches turn gray, brown, or even black. An oxidized potato is completely safe to eat, the process doesn't affect the flavor or texture of the vegetable.What is a White Sweet Potato?
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Images: William Fortunato, Radovan Zierik, Ryutaro Tsukata, Katerina Holmes