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preferred stage, you can slow further ripening by placing them in the refrigerator.
The peel may turn dark brown or nearly black in the cold, but the flesh inside can remain in good condition for a time. Peel color alone does not determine whether the fruit is spoiled.
Check the fruit for unusual odors, mold, leaking liquid, or other clear signs of deterioration.
Saving brown-spotted bananas
Very ripe bananas can be frozen for later use.
Peel them first, cut them into pieces if convenient, and store them in a freezer-safe container or bag. Frozen banana pieces work well in smoothies and can also be thawed for baking.
Freezing changes the texture, so thawed bananas are generally better suited to recipes than to eating as firm fresh fruit.
Labeling the container with the date can help you keep track of storage time and reduce waste.