Casting has remained the main industrial manufacturing process for many years. Casting performed through conventional processes results in excessive energy consumption and nonuniform heating. It causes waste of energy and materials, and most pertinent of all, they pose serious hazards to the environment. Also, the rules and regulations revealing the environmental concerns of the government have provided stimulus to investigate novel casting methods. Hence, the focus of all material processing industries has shifted toward the adoption of new technologies for environment-friendly manufacturing. Microwave casting is a newly emerging way of casting a variety of materials by making use of microwaves. It is an energy-efficient and novel manufacturing process. Microwave casting is mainly of two types, viz. in-situ and ex-situ casing. In this novel heating technique, material gets heated from inside, and heat is convected outside. Microwaves have been employed in different utilities like microwave sintering, enclosure, hard soldering, joining, drilling, and casting. In this domain, aluminum and its alloys, steel, nickel, ceramics, and metal matrix composites have been successfully cast using microwaves. In this research work, microwave casting of copper of size 125 × 35 × 2 mm3 has been done using an LG domestic microwave oven of rating 900 W with a workspace volume of 20 L having a pulsation rate of 2.45 GHz. Charcoal powder has been used as susceptor material and graphite sheet as the separator sheet.