FIELD: process engineering.
SUBSTANCE: filtering container comprises water permeable case of filtering permeable thermo-moulding material produced from flat film by thermal moulding. Said case makes the container inner chamber to keep water-soluble boiling product and has flat bead extending around container opening and reinforcing ring with horizontal part connected with said flat bead to make the support. Horizontal part has flat top surface that makes the extra ring. Container flat bead is connected with membrane that closes the container opening. Reinforcing ring comprises wall vertical part connected with container case to up the ring stiffness that renders said membrane rigid.
EFFECT: ease of cover pricking.
25 cl, 16 dwg
