Three to five days. After three to five days in a warm and ventilated place, the papaya will ripen naturally and can be eaten when the skin is soft when gently pinched. The scientific name of green papaya is papaya, also known as Wanshou fruit. Together with lychee, banana and pineapple, it is known as one of the "Four Famous Fruits in Lingnan". Its peel is smooth and beautiful, the flesh is thick and delicate, rich in aroma, rich in juice, sweet and delicious, and rich in nutrients. It is known as Known as the "King of Baiyi Fruit".