If you’re referring to the viral “one kitchen item” banana-storage trick, it is usually plastic wrap around the banana stems.
Why it may help
Bananas naturally produce ethylene, a plant hormone that promotes ripening. Wrapping the stems can reduce the movement of ethylene around the fruit and may slow ripening somewhat.
How to try it
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Separate the bananas if you want to slow ripening individually.
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Wrap the stem/crown of each banana with a small piece of plastic wrap.
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Keep unripe or ripe bananas at room temperature, away from direct sunlight and heat.
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Once they reach your preferred ripeness, refrigerating them can slow further deterioration. The peel may darken, but the flesh can remain edible.
Is “10 days longer” guaranteed?
No. That’s an exaggerated claim. How long bananas last depends on their starting ripeness, temperature, humidity, variety, and handling. Stem wrapping may extend their useful life, but there is no reliable guarantee of exactly 10 additional days.
A more accurate headline would be:
“Make Bananas Last Longer With This Simple Kitchen Storage Trick”
