PURPOSE: To provide a screw press-type squeezer to separate soybean milk from boiled mashed soybean soup in producing TOFU (bean curd), designed to prevent the soybean milk squeezed out in the squeezing process from developing bubbles due to its impinging on a jacket to enable bubble-free soybean milk to be produced.
CONSTITUTION: A cylindrical squeezing screen 36 made of a perforated plate and a cylindrical jacket 38 are disposed in an innerly and outerly double fashion. A screw 35 equipped with a squeezing blade 35b is disposed in a squeezing chamber 50 inside the squeezing screen 36. The screw 35 is subjected to rotary driving during use. In a soybean milk chamber 51 inside the jacket 38, a liquid level line L exceeding the upper surface of the squeezing screen 36 is assumed. The peripheral wall of the jacket 38 situated above the line L is provided with an extraction port 39 through which soybean milk is to be discharged. When this squeezer is in operation, an squeezing process is conducted in such a state that the jacket 38 as a whole is immersed in the soybean milk.