As part of steam savings, V R L devised a double effect evaporator for concentrating the decolorized fine liquor coming from refinery. The Falling Film Evaporator is of tubular type construction designed to handle high concentration melt liquor boiled with low temperature vapor. There is no hydrostatic head and operates at minimum Delta T in this design. Due to negligible retention time, the inversion loss is almost nil & due to low temperature boiling the color pickup during concentration is bare minimum. Specially designed by VRL to increase the concentration of fine liquor from 60⁰ brix to 72⁰ brix which can be adjusted to suit downstream process requirements. This will enable steam savings at refinery pan boiling and enhance pan capacity.