The kitchen item that can help bananas last up to 10 days longer is **aluminum foil** (or plastic wrap).
### Why It Works
Bananas naturally release a plant hormone called **ethylene gas** primarily through their stems. This gas is what drives the ripening and eventual browning process. When bananas are tossed together in a standard fruit bowl, the gas pools around them—and affects any other nearby produce like apples or avocados—causing everything to overripen and spoil much faster.
### How to Do It
1. **Separate the bunch:** If your bananas are still clumped together tightly, gently break or cut them apart into individual bananas or smaller pairs.
2. **Wrap the stems:** Take a small piece of **aluminum foil** or plastic wrap and tightly wrap it around the stem/crown of each banana.
3. **Store on the counter:** Instead of trapping them in a confined fruit bowl, leave them out on an open section of your kitchen countertop (or hang them on a banana hook) to maximize air circulation.
Sealing the stems traps the escaping ethylene gas at the source, drastically slowing down how fast the fruit ripens.
