Abstract: A strainer device for assisting in draining packing liquid from opened tuna fish cans, as well as from opened cans of produce such as vegetables, fruit, and beans, the device including a molded plastic short hollow cylinder open at the top end and closed at the bottom end with a perforated bottom wall, the strainer body sized to be slidably fit into an opened tuna fish can. A pair of flange ears at the top enable the bottom each to be pushed into the tuna to force the liquid out through the bottom wall perforations as well as a series of slots around the perimeter. The bottom wall bulges down to be convexly shaped, aiding in moving the liquid out through the slots and also allows an inverted open can of produce to drain through the perforations as the strainer is resting on a supporting surface.