Abstract: The can sealer apparatus includes a plate member having a skirt protruding from the bottom of the plate shaped to conform to the surface of the can lid, of a size sufficient to encompass the opening in the can lid. The plate member has a central aperture, and a post member, having at least one bevelled edge on the bottom surface of the post. The stem of a generally T-shaped member extends through the central aperture of the plate member and includes a handle for urging the bottom crosspiece of the stem toward the plate member. An elastomeric sealing member is also provided between the plate member and the crosspiece of the T-shaped member, adapted to be clamped over the top surface of the can lid while the crosspiece presses against the under surface of the can lid.