The brighter the fruit, the more beta-carotene
(the substance that helps to prevent cancer) your avocado contains.
Select heavy, unblemished fruit. Most market sell unripe hard avocados.
So after you buy one, allow it to ripen between 3 to 6 days. If avocado
yield slightly to gentle pressure, it’s ready to be eaten. If you need
to speed up the ripening process, place avocados in a paper bag with
apple or banana. Never put avocado in a fridge since it makes the
ripening process significantly slower.