Fresh corn is a favorite during the summer. Whether it’s grilled at a barbecue, boiled for dinner, or served with a little butter and herbs, sweet corn is a delicious addition to many meals. But what if you peel back the husk and discover a strange black growth hiding inside the cob?
At first glance, it can be alarming. Many people worry that the corn has become dangerously contaminated. Fortunately, understanding what you’re seeing can help you make the right decision.
Why Does Corn Sometimes Turn Black?
One of the most common reasons for black or dark gray growth inside a corn cob is a fungal disease known as corn smut (Ustilago maydis). This fungus infects developing kernels, causing them to swell into soft, grayish-black masses that eventually release dark spores.
Although its appearance may be unpleasant, corn smut is a naturally occurring plant disease that affects corn crops around the world.
Is It Dangerous?
For most healthy people, corn smut is not considered toxic. In fact, it is regarded as a delicacy in Mexico, where it is known as huitlacoche and is used in dishes such as tacos, quesadillas, soups, and tamales.
However, there are a few reasons why you may still want to avoid eating affected corn:
- The taste and texture are very different from normal sweet corn.
- The fungus may indicate that the corn has begun to deteriorate.
- People with weakened immune systems may wish to avoid moldy or fungus-infected foods unless they are properly prepared and intended for consumption.
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