Are Those Black Spots on my Cabbage Safe to Eat?



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When shopping for napa cabbage, we’ve noticed that some heads have tiny black spots, about the size of ground pepper, on both the leaves and ribs.

The cause of these dots, known as “pepper spot” or “black spec,” is unknown, but low light levels, high soil pH, harvesting and storage conditions, and excessive use of fertilizers high in nitrogen and phosphorus are all possibilities. Regardless of the cause, our science editor confirmed that cabbage leaves with these spots are perfectly safe to eat. But to find out if they affect flavor or texture, we set up a blind tasting. Tasters couldn’t tell the difference between unblemished leaves and those with pepper spot. And unless we’re using whole cabbage leaves, the dots are so small that they aren’t even noticeable. From now on, we’ll go ahead and buy heads of napa cabbage with the black dots without concern.

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37 Comments

  1. You're kidding – first of all, I wasn't looking for Napa cabbage, and your title doesn't mention Napa cabbage. I assume, however, that it's the same for all cabbage. Secondly, I would like to see an example of the little black spots because I'm not sure mine are the same. How am I supposed to tell?

  2. In Asia, we called the black dots as sesame seed spots or gomasho. According to research, its due to a kind of vegetable 'disease' which is harmless or due to certain growing conditions like calcium deficiency. It may be due to calcium deficiency caused by drought, low temperature, etc., or it may be due to excessive nitrogen fertilizer, which affects the absorption of calcium. Avoid if Napa cabbage have larger black patches or rotting, you will be able to tell. The tiny black specks are totally safe, its not mold

  3. Yeah, it is a Mysterious Disease called Morgellons. These Black Spots are Nano-Particulate being sprayed on the crops from commercial Planes high in the Stratosphere. Any One With a Brain Knows about this. These Particulates include strontium, barium and aluminum.(THESE SPOTS ARE IN NO WAY SAFE, DON"T BE FOOLED) The Black Spots Are in a Large Variety of Plants and this field of study needs more time to be conclusive.

  4. If the origin of these black spots  is unknown how do they know for sure that they are safe to eat? To me it's the beginning of something  that's no good,  so I will never eat them, unless I'm starving.

  5. I LOVE THIS VIDEO! Why can't ALL informational videos be like this? I really enjoy this channel called "Today I Found Out" but they'll have a question as the title of their video, like this one, and it's a yes or no question. Somehow, they'll take this yes or no question and turn it into a 12-minute video. If that channel answered this question, we would get a 5-minute backstory on why it's called napa cabbage and where cabbage originated. THANK YOU for answering questions that I'm genuinely curious about in the same manner that one would answer them in normal conversation. I recommend this channel to literally everyone who has any kitchen questions. I'm between 25 and 35, so naturally everyone I know is getting married. Every time anyone has a question on "what [insert kitchen item] should I register for? You work I'm a kitchen" I don't even hesitate. "America's Test Kitchen has a video for that. Here's the link"

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