Method for washing container

A method of washing a container, said method comprising:

• charging a liquid to be contained into a container body having a mouth-and- neck portion;
• heating the liquid to a temperature of 70° C. or higher;
• mounting a container closure on the mouth-and-neck portion of the container body, the container closure having a top panel wall, a cylindrical skirt wall extending downwardly from a peripheral edge of the top panel wall, and washing liquid passages formed in at least one of an upper portion of the skirt wall and a peripheral edge portion of the top panel wall;
• toppling the container for 20 seconds or more to maintain the heated liquid in contact with the container closure so as to heat the container closure;
• and
• jetting at the container closure a washing liquid heated to 45° to 70° C. so that the washing liquid passes through the washing liquid passages and enters a space between the mouth-and-neck portion of the container body and the skirt wall of the container closure to wash an outer peripheral surface of the mouth-and-neck portion of the container body and an inner peripheral surface of the skirt wall of the container closure.

A method of washing a container, said method comprising:

• charging a liquid to be contained into a container body having a mouth-and-neck portion;
• mounting a container closure on the mouth-and-neck portion of the container body, the container closure having a top panel wall, a cylindrical skirt wall extending downwardly from a peripheral edge of the top panel wall, and washing liquid passages formed in at least one of an upper portion of the skirt wall and a peripheral edge portion of the top panel wall;
• jetting a fluid heated to a first temperature of 70° C. or higher at the container closure for 2 to 4 minutes to heat the container closure;
• and
• then jetting at the container closure a washing liquid heated to a second temperature of 450 to 70° C. so that the washing liquid passes through the washing liquid passages and enters a space between the mouth-and-neck portion of the container body and the skirt wall of the container closure to wash an outer peripheral surface of the mouth-and-neck portion of the container body and an inner peripheral surface of the skirt wall of the container closure.