Never let your hard-earned fruits and vegetables get wasted by getting spoilt. And that is where the refrigerator plays such an important role. And however, the role of a refrigerator that is branded and featured like LG 630 L 3 Star with Inverter Double Door Refrigerator (GR-H812HLHQ) is too great and wide. Refrigerators work by causing the refrigerant circulating inside them to change from a liquid into a gas. This process, called evaporation, cools the surrounding area and produces the desired effect. When you release the contents into the lower pressure open space, it turns from a liquid to a gas.