All you need is a paper bag!
If you put an unripe avocado in a paper bag along with an apple or banana, the ethylene gas that the apple or banana emits will make the avocado ready to eat within a couple of days. The paper bag ensures that the gas is kept in the air surrounding the avocado.
The Keep-it indicator shows the actual shelf life of fresh food, and helps you make smart choices every day. This is how.