As bananas ripen, they get sweeter and more flavorful as their starches turn to sugar, which makes them tastier to eat out of hand and great for sweet recipes like banana bread. They are perfect for baking when speckled with brown all over and have a strong fruity fragrance. Bananas also get softer as they ripen, and their mashability makes them ideal for treats and creamy smoothies.
But just how ripe are we talking about here? Should you be using those completely black bananas on your counter or is it safer to toss them in the compost bin instead? To find out, I checked with the experts at the U.S. Food and Drug Administration (FDA), as well as James E. Rogers, Ph.D., the Director of Food Safety Research and Testing for Consumer Reports.
Is It Safe to Eat and Cook with Black Bananas?
Good news for Team Ripe Banana: Extremely ripe bananas—even those with a completely black peel—are likely safe to eat. According to a spokesperson for the FDA, "Generally, as long as it is not visibly moldy, it is safe." Rogers concurs, saying he hasn't seen any studies linking foodborne illness to eating extremely ripe bananas.
That said, Rogers states that if your bananas are jet black and mushy, your safest bet is to cook with them rather than eating them out of hand or using them raw in things like smoothies or nice cream.
"The riper the bananas get, the more levels of bacteria could be on them," he says. Those bacteria include spoilage bacteria, which are typically not harmful, but could also be pathogenic bacteria (which can make you sick) picked up during harvesting, processing, or at the grocery store.
Fortunately, heat should kill any pathogenic bacteria that might have been lurking around and multiplying on the bananas as they ripened. "Cooking is a kill step," says Rogers.
Also, note that placing bananas in the fridge or freezer will turn them black. This is natural—bananas don't handle the cold well—and does not mean the bananas are bad. You can still eat them safely as long as they aren't moldy.
3 Signs It’s Time To Throw Away Your Bananas
If you notice any mold on your bananas, it's time to throw them away or toss them in the compost bin. The black skin itself is not mold. Mold on bananas is fuzzy white, gray, or greenish—it looks a lot like mold on bread.
If a banana smells rotten or fermented or is leaking fluid, it's time to say goodbye.
If the fruit inside, not just the peel, is black, that's a sign that your banana is too far gone to safely eat.
The Takeaway
Completely black bananas are likely safe to consume as long as there is no visible mold, a rotten smell, or the fruit inside is black. If none of these are true and your bananas are simply black, your best bet is to cook with them rather than eat them raw.
Mold on bananas is fuzzy white, gray, or greenish—it looks a lot like mold on bread. If a banana smells rotten or fermented or is leaking fluid, it's time to say goodbye. If the fruit inside, not just the peel, is black, that's a sign that your banana is too far gone to safely eat.
If the bananas have any visible signs of mold, throw them out. If they smell off, that's another good indicator that they are no longer okay to use. Rotten bananas will often have a fermented or alcohol-like smell.
According to a spokesperson for the FDA, "Generally, as long as it is not visibly moldy, it is safe." Rogers concurs, saying he hasn't seen any studies linking foodborne illness to eating extremely ripe bananas.
Bananas are incredibly tasty and easy to eat. What's more, they're rich in many essential vitamins and minerals. Most people eat bananas when the fruit is yellow and ripe, but green unripe bananas are also safe to eat. However, some people dislike their taste and texture.
A person with diabetes can enjoy bananas in moderation as part of a balanced diet. The vitamin, mineral, and fiber content of bananas may even offer health benefits for people with diabetes, as long as an individual does not eat excessive portions.
Bananas may improve or worsen constipation depending on their level of ripeness; an unripe banana may worsen constipation while a ripe banana could relieve constipation. These effects may also vary depending on a person's overall diet, including total intakes of fiber and fluid, and underlying health issues, like IBS.
Pairing a banana with a healthy fat or protein—such as a handful of almonds or a cup of Greek yogurt—will help prolong the energy the banana provides and keep your blood sugar more stable.
Bananas are packed with sugar, which is why eating them on an empty stomach can cause a sudden spike in blood sugar levels. This can lead to fatigue, headaches, and other problems. This is the reason why diabetics are always asked to not start their day with a slice of banana.
But our body's metabolism is at its lowest in the night. So one should ideally consume bananas in the morning or evening, but eating bananas at night can regulate the sleep cycle. Tryptophan is an essential amino acid that helps the body produce serotonin, a brain chemical that regulates sleep,” Dr.
Bananas with black spots are safe for consumption and do not pose any health risks. However, exercise caution if a banana with dark spots emits a bad odour. In such cases, it is advisable to steer clear and opt for a fresher alternative. Trust your senses when it comes to ensuring the quality of this nutritious fruit.
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