Cutting the stems of banana instead of wrapping them when preserving them

It's very likely that any benefit gained by doing this will be completely destroyed by the act of cutting into the protective skin of the fruit. Once you do this, you're exposing the interior skin and the fruit itself to microbes in the air, which will be more than happy to colonize and eat away (i.e. rot) the banana you were trying to preserve.

If you find it too time-consuming to wrap their stems to extend shelf life, you could seek out less ripe bananas so it takes longer for them to ripen, or buy smaller batches that you can eat in a shorter time so there's no need for preservation.

I eat a ton of bananas and was excited when I heard about this...but it’s a total lie. I did it for 2 weeks (2 bunches) and saw no difference. So, I did an experiment. I did 2 with and 2 without...then took a pic...then left them untouched on my counter for 4 days. Then took another pic. The ones wrapped looked EXACTLY the same as the ones with no wrap. Both equally spotted and soft. No preserving what so ever! I’m going back to using the “green bags”. They don’t work great but definitely better than doing the “plastic stem wrap”. I don’t see an option to attach the pics here but I’ll find another site that I can.

I cut off the stems about 1/2" above the banana fruit and it definitely helps. I would say it adds about 2 maybe 3 days slowing down the ripening.