PROBLEM TO BE SOLVED: To provide a homogenization device that establishes compatibility between high hygiene and stable control.SOLUTION: A homogenization device includes a homogenization valve 10 that emits jet of raw material from minute clearances 11 to homogenize the raw material, and a minute clearance adjustment mechanism 30 that adjusts an interval between the minute clearances 11. The minute clearance adjustment mechanism 30 increases/decreases water pressure within a pressure transmission chamber 19a by controlling supply/discharge of pressurized water to/from a booster cylinder 36, and adjusts the interval between the minute clearances 11.