No More Rotten and Black Bananas After a Few Days: With This Method They Will Last 2 Years.

As with most produce, there comes a point of no return. If the bananas have any visible signs of mold, throw them out. If they smell off, that’s another good indicator that they are no longer okay to use.

Rotten bananas will often have a fermented or alcohol-like smell. While it’s okay if the banana peel is dark brown or even black, if the inside is too, then the fruit is beyond ripe and now on its way to rotten.

Another sign that bananas have gone bad is if they start leaking any fluids. When in doubt, just toss the bananas out.

What To Do With Those Brown Bananas
You’ve determined that your brown bananas are still good to use, but you need to get a move on and bake with them soon. So, what should you make?