To provide a grinder which can carry out the grinding work of the seasoning with one hand by enabling the simultaneous housing of the two kinds of seasoning desired to grind.

Two bottle bodies are combined into a one unit form and a partition is provided between the bottle bodies. A grinder and a transmission device are mounted in the respective bottle bodies and a lateral press body is so arranged each outside the two bottle bodies as to get the lateral press bodies linked with the transmission devices and the grinders respectively. When a lateral press body is pressed by a user with one hand, it is linked with the transmission device to drive the grinder and the seasoning is ground filling under the bottle body with the grinder.