Why do bananas turn brown?
Banana's Sweet Finale
Why do bananas turn brown?

You leave a banana on the counter. It's perfect — bright yellow, firm, ready to eat. You turn your back for a day or two, and suddenly it's covered in brown spots, going soft and sweet. What's happening inside that peel?
Here's the secret: bananas are alive even after you pick them. They're still breathing, still busy with chemical reactions, still changing. Inside every banana cell are tiny packages called enzymes — molecular workers that break things down and build things up.
