Grinding container that allows meticulous operation

A grinding container comprising:

• a container body having a main shell and a socket cylinder, the main shell forming a mounting space on an inner side thereof, the mounting space being open at a top, the socket cylinder located at a lower portion on an inner side of the main shell and extending a particular length along a longitudinal direction, the socket cylinder forming a manipulation passageway on an inner side thereof such that the mounting space is in communication with an exterior;
• a cutter plate secured in relation to the container body at a position covering the top of the mounting space, the cutter plate having a cutter blade on a bottom surface thereof and having a discharge hole formed therein, the cutter blade configured to grind a solid content, the discharge hole penetrating the cutter plate along the longitudinal direction to discharge the ground solid content;
• a piston having at least a portion thereof arranged within the mounting space to support the solid content, the piston having a guide slit formed in an upper surface thereof, the guide slit penetrating the upper surface of the piston along the longitudinal direction, the piston configured to be movable along the longitudinal direction in relation to the container body;
• and
• a dial rotatably coupled to a lower portion of the container body and having a guide pillar, the guide pillar extending upward into the mounting space, the guide pillar inserted through the manipulation passageway into the guide slit such that an upper end of the guide pillar is located within the mounting space,
• wherein the piston comprises a stem extending downward such that at least a portion of the stem is located within the manipulation passageway, a thread is provided on one of an inner perimeter of the socket cylinder and an outer perimeter of the stem, and a mating protrusion configured to engage the thread is provided on an other of the inner perimeter of the socket cylinder and the outer perimeter of the stem.