Hydro-pneumatic kettle for acrylic cooking. Ideal equipment for glycerin or water. The pressure boiler is made of nickel-plated brass. The cap lock is simple and safe. The time and temperature control (0 a 120 °C.) may be manual or automatic. By pass air discharge and manual liquid discharge. Has a built-in sonorous alarm for the control of the time and temperature. It is optional the use of a discharge container and a special host.