There are dozens of tales of how to ripen them but most take days to work.
According to the bloggers behind WonderHowTo, these methods can be skipped and with a few simple steps, an avocado can be ripened in 10 minutes.
The method requires the avocados to be tightly wrapped in foil and placed in an oven set to 93 degrees for ten minutes.
The creative minds behind YouTube channel TheSubstanceProject have also made a video to explain the process.
The idea behind it is that avocados will release their ripening gas, ethylene, much faster in the oven.