It depends on which kind you buy, because papaya is divided into green and yellow. If you buy a green papaya, the flesh inside is white, don't wait until it's yellow to eat it, when it's yellow it's bad.

If you buy a yellow papaya (usually sold in stores) you should wait until it is yellow and eat it, the flesh is orange. Maybe when you buy it is green, but at most two days to put completely yellow, yellow should be eaten quickly, or easy to bad.

Extended information:

Papaya preservation:

Papaya is best to buy and eat first, should not be refrigerated, if you buy is not yet ripe papaya can also be wrapped in paper, placed in the shade of the cooler 1 ~ 2 days after consumption.

Papaya ripening:

1, you can put a single papaya in the sun, high temperature can promote the ripening of papaya. The fruit ripening method utilizes the ethylene that will be released during the ripening process of the fruit to promote the ripening of papaya. Place unripe papayas in rice and grain chaff so that the papayas are completely buried in the rice or grain chaff.

2, papaya ripening with a toothpick is the simplest and most convenient method of ripening, and security is particularly high, the specific method of operation is to buy back the papaya with a toothpick at the ends of some small holes, and then placed in a plastic bag, stored in a warm environment, after two or three later can be taken out of the food.