Quantitative division unit, quantitative division method, and food production method

A quantitative division unit comprising a quantitative division device that feeds a predetermined amount of a paste ingredient, wherein

• the quantitative division device comprises:
• a peripheral wall portion that has a hollow shape and includes an internal space extending in a first direction, a first port via which outside communicates with the internal space, and a second port via which outside communicates with the internal space and which is provided at a position different from the first port in terms of the first direction,
• a first plunger and a second plunger that are arranged to face each other in the first direction in the internal space and that are provided to be movable in the first direction, and
• a drive unit that moves the first plunger and the second plunger in the first direction,
• the drive unit
• moves at least one of the first plunger and the second plunger to shift the first plunger and the second plunger from a first driving state where the first plunger and the second plunger are arranged in such a manner that a space or a contact surface between the first plunger and the second plunger is located at a position facing the first port, to a second driving state where the first plunger and the second plunger are separated from each other, so as to introduce the paste ingredient between the first plunger and the second plunger via the first port due to a negative pressure generated in an area of the internal space between the first plunger and the second plunger,
• moves the first plunger and the second plunger to shift the first plunger and the second plunger from the second driving state to a third driving state where at least a part of the paste ingredient between the first plunger and the second plunger is disposed to face the second port while the first plunger is kept separated from the second plunger, and
• moves at least one of the first plunger and the second plunger to bring the first plunger and the second plunger close to each other to shift the first plunger and the second plunger from the third driving state to a fourth driving state where the first plunger and the second plunger are arranged in such a manner that the space or the contact surface between the first plunger and the second plunger is located at a position facing the second port, so as to feed the paste ingredient between the first plunger and the second plunger to outside via the second port.