Cavitus ultrasonic foam control systems are designed to reduce production problems associated with foaming in canning and bottling lines. The patented sonotrode generates ultrasonic waves that destroy the surface tension of the foam bubbles. This causes the bubbles to collapse (implosion). Foam control in the beverage industry is achieved by reducing or compressing the foam protruding over the top of the can or bottle below its rim. By defoaming the headspace with ultrasound, savings can be achieved in the filling line.