Container for preparing hot drink, has external element inserted into upper space and lower space of wall, sharp or pointed area formed below protrusion part and flexible caps, and protrusion part formed on spaces of wall

摘要

The container has a wall whose lower space is provided with a hole. Flexible caps are attached to a container part. A porous filter is provided on a top part of the wall. A protrusion part is formed on an upper space and the lower space of the wall. A sharp or pointed area is formed below the protrusion part and the caps. An external element is inserted into the upper space and the lower space of the wall.