Discharge container, customized discharge system having discharge container, and discharge control method in discharge container

A discharge control method for controlling a discharge container including

• a container body extending along a longitudinal axis and having a discharge face at one end of the container body along the longitudinal axis, the discharge face being formed with a recess substantially in a pan shape having a center axis along the longitudinal axis, a wide end opening of the pan shape being coplanar with an end surface of the container, a narrow end opening of the pan shape being disposed inside the container body along the longitudinal axis and being coplanar with a discharge hole for discharging contents;
• a cylinder part including a discharge space communicated with a discharge hole, the discharge space being formed inside an inner wall so as to be in a cylindrical shape, an end of the discharge space along the longitudinal axis being closed by the piston, another end of the discharge space along the longitudinal axis facing an outside of the discharge container through the recess,
• a piston movable between a first position and a second position farther than the first position from the discharge face through the discharge space, and
• a plurality of storage portions storing contents, the discharge control method comprising:
• a step of moving the piston from the first position to the second position to substantialize a communication state, in which a plurality of supply passages for connecting a plurality of inlet holes provided in the inner wall of the discharge space with the plurality of storage portions communicates with the discharge space through the plurality of inlet holes opened so as to direct the longitudinal axis;
• a step of causing the contents to flow into the discharge space from the plurality of inlet holes;
• and
• a step of moving the piston from the second position to the first position to extrude the contents flowing into the discharge space out of the discharge container from the discharge hole.