Bronze and terracotta sculptures are two distinct forms of artistic expression, each requiring unique firing techniques that influence their final appearance and durability. Bronze sculptures are crafted using the lost-wax casting method, where molten metal is poured into a mold created from a wax model. This process involves high-temperature furnaces to melt the bronze, typically around 1,700°F (930°C), followed by cooling and polishing. The result is a durable, long-lasting piece resistant to environmental wear.

In contrast, terracotta sculptures are made from clay and fired at lower temperatures, usually between 1,800°F (980°C) and 2,100°F (1,150°C). The firing process hardens the clay, giving it a characteristic reddish-brown hue. Unlike bronze, terracotta is more porous and brittle, making it susceptible to cracking over time. However, its affordability and ease of molding make it a popular choice for intricate designs.

While bronze offers longevity and a lustrous finish, terracotta provides a rustic, earthy aesthetic. The choice between the two often depends on the artist's vision, budget, and desired durability. Understanding these firing techniques helps appreciate the craftsmanship behind each medium.