Creating porcelain sculptures with mixed firing techniques is a complex art form that demands precision and creativity. One of the most common challenges is controlling kiln temperatures, as different materials and glazes require specific heat levels to achieve the desired results. Uneven heating can lead to cracks or warping, compromising the sculpture's structural integrity.

Another issue is glaze compatibility. Combining multiple glazes or firing methods often results in unpredictable interactions, such as blistering or color shifts. Artists must meticulously test combinations to avoid flaws. Additionally, the fragility of porcelain during high-temperature firing increases the risk of breakage, requiring careful handling and support structures.

Time management is also critical, as mixed techniques may involve multiple firing stages, extending production timelines. Balancing artistic vision with technical constraints remains a persistent challenge, making this process both rewarding and demanding for ceramic artists.