To keep bananas fresh longer, follow these key tips:

• Wrap the banana stems with plastic wrap or foil to slow down the release of ethylene gas, which speeds ripening. Wrapping the stems individually after separating them can be even more effective.
• Store bananas in a cool, dark place around 12°C (54°F). Avoid warm kitchens and direct sunlight, which make bananas ripen faster.
• Once bananas are fully ripe, put them in the fridge. The cold slows down further ripening, although the peel may darken without affecting taste.
• Keep bananas away from other ethylene-producing fruits like apples and avocados to prevent premature ripening.
• Hang bananas rather than laying them down to avoid bruising and help them last longer.
• For sliced bananas, sprinkle lemon or lime juice on the slices and store in an airtight container to prevent browning.

These steps can help keep bananas fresh for several days longer than usual.