PURPOSE: To properly perform the kneading work and obtain good bread by providing an auxiliary kneading means protrudably provided into a manufacturing container and a state detecting means detecting the bread material state at least during the kneading work.

CONSTITUTION: A temperature sensor 51 adequately outputs the temperature signal of bread dough 31 to a controller 21 in the bread kneading process, and the protrusion length of the kneading bar 17 is controlled to have the optimum kneading state based on the present temperature state of the bread dough 31. When the temperature T of the bread dough 31 is lower than the lower limit preset temperature T1, a fixed side coil 24 is excited and the protrusion length of the kneading bar 17 is made maximum so as to prevent deficient kneading. When the temperature T is higher than the upper limit preset temperature T2, a fixed side coil 26 is excited and the protrusion length of the kneading bar 17 is made minimum so as to prevent excess kneading. The proper kneading work in response to the bread dough state can be performed.