Professional design to remove non-condensable micro bubbles in liquid product, improve and develop product guality. Technigue of forming an umbrella like thin surface in tank, increase and maximize itseffective area, help micro bubbles to settle off the surface tension under vacuum condition, easy emergeand quickly discharge. in order to prevent the distribution of the effective components, secondary steam recovery devices were designed to restore it back into tanks under condensation, so as to ensure thegood flavor. Liquid level automatically adjusted, ansure large space on top of tank, even under lower temp.