I need to make guacamole on Sunday. Today is Thursday. My avocados are green and just darkening. Experience tells me that they will be fully black in color on Sunday but still too firm inside, perhaps needing two more days to fully soften and be at their peak deliciousness. I have them in a plastic bag (I don't have a paper one) with a banana inside because I read once that bananas give off some fume that ripens fruit. Is there anything else I can do to help the avocados soften nicely?
I read this CH thread here on microwave cooking that in a case of true desperation I can nuke-ripen them for one minute in the microwave for guacamole, and the less than prime taste will be masked by the lime juice...I hope there is something else that can be done.