A pulp mold lid (100) is provided with a top (10) and an outer peripheral edge (30), is engageable with and disengageable from the opening end (3) of a container (1), and satisfies: requirement 1 in which an engaging force that is a maximum load value obtained when the pulse mold lid (100) is placed horizontally to the upper end (5) of the opening end (3) above the opening end (3) of the container (1) and is engaged with the opening end (3) of the container (1) by application of a load in the vertical direction at a speed of 100 mm/min., is 0.2-6.0 N/cm; or requirement 2 in which an opening force that is a load value obtained when the engagement is released by hooking, using an L-shaped tool (N), the lower end (31) of the outer peripheral edge (30) of the pulp mold lip (100) engaged with the...

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