A method for maturing a rosaceous fruit after harvest, characterized by maturing a rosaceous fruit in an oxygen-loaded atmosphere； a method for storing a rosaceous fruit, a method for increasing ester production, or a method for increasing lactone production, a method for producing a fruit matured after harvest, having the same characteristics as the above characteristics； and a fruit matured after harvest obtained by these methods； a processed product using the fruit； a method for producing a fruit liqueur using the fruit； and a fruit liqueur obtained by the method. According to the present invention, it is possible to obtain a fruit that is matured after harvest which is more excellent in aroma. In addition, a fruity fruit liqueur can be provided by using the fruits that are matured after harvest.
