Dough processing machine - with a housing, - with a dough metering device having -- a dough feeding unit, -- a dough feeding piston, -- a measuring drum with a plurality of measuring chambers, -- a dough chamber via which dough is conveyed, by means of the dough feeding piston, from the dough feeding unit to the measuring chambers of the measuring drum, -- a plurality of measuring pistons, wherein one of the measuring chambers is in each case associated to a respective one of the measuring pistons to define a measuring chamber volume, wherein in each case a plurality of the measuring pistons are carried by in each case one measuring piston bar arranged radially inside the measuring drum, - a slotted link guide for the controlled displacement of the measuring pistons between -- a retracted measuring position in which the measuring piston defines the measuring piston volume, -- an extended transfer position to transfer the dough volume quantity metered in the measuring piston volume to a dough processing component arranged downstream thereof, - wherein the slotted link guide has at least one slotted link carrier plate, which is displaceable at least partly between -- a slotted link guide operating position in which at least one slotted link of the slotted link carrier plate is operatively connected with the measuring piston of at least one measuring piston bar, -- a slotted link guide cleaning position in which the measuring piston bars are removable from the measuring drum. - with a housing, - with a dough metering device having -- a dough feeding unit, -- a dough feeding piston, -- a measuring drum with a plurality of measuring chambers, -- a dough chamber via which dough is conveyed, by means of the dough feeding piston, from the dough feeding unit to the measuring chambers of the measuring drum, -- a plurality of measuring pistons, wherein one of the measuring chambers is in each case associated to a respective one of the measuring pistons to define a measuring chamber volume, wherein in each case a plurality of the measuring pistons are carried by in each case one measuring piston bar arranged radially inside the measuring drum, -- a dough feeding unit, -- a dough feeding piston, -- a measuring drum with a plurality of measuring chambers, -- a dough chamber via which dough is conveyed, by means of the dough feeding piston, from the dough feeding unit to the measuring chambers of the measuring drum, -- a plurality of measuring pistons, wherein one of the measuring chambers is in each case associated to a respective one of the measuring pistons to define a measuring chamber volume, wherein in each case a plurality of the measuring pistons are carried by in each case one measuring piston bar arranged radially inside the measuring drum, - a slotted link guide for the controlled displacement of the measuring pistons between -- a retracted measuring position in which the measuring piston defines the measuring piston volume, -- an extended transfer position to transfer the dough volume quantity metered in the measuring piston volume to a dough processing component arranged downstream thereof, -- a retracted measuring position in which the measuring piston defines the measuring piston volume, -- an extended transfer position to transfer the dough volume quantity metered in the measuring piston volume to a dough processing component arranged downstream thereof, - wherein the slotted link guide has at least one slotted link carrier plate, which is displaceable at least partly between -- a slotted link guide operating position in which at least one slotted link of the slotted link carrier plate is operatively connected with the measuring piston of at least one measuring piston bar, -- a slotted link guide cleaning position in which the measuring piston bars are removable from the measuring drum. -- a slotted link guide operating position in which at least one slotted link of the slotted link carrier plate is operatively connected with the measuring piston of at least one measuring piston bar, -- a slotted link guide cleaning position in which the measuring piston bars are removable from the measuring drum.