Aluminum foil or plastic wrap creates an airtight seal around the stems, trapping the ethylene gas and preventing it from circulating into the air.
Don’t make the mistake I did by using parchment paper—I’ve learned that it doesn’t work, as it can’t form a proper seal to contain the ethylene gas.
About two weeks ago, I tested this method on a newly bought bunch, and after 10 days, the bananas were still fresh. With just a bit of aluminum foil, they lasted nearly two weeks longer than they would’ve in a fruit basket.
I’ve also realized that it’s better to keep bananas in a bunch rather than separating them. Just the other day, I noticed that a banana I accidentally broke off from the bunch is developing spots, while the others, still attached, are perfectly fine.
Another tip
