Porcelain sculpture is a delicate art form where even minor imperfections like air bubbles can ruin a piece. Artists employ several techniques to address this challenge, ensuring flawless results.

First, thorough clay preparation is essential. Kneading the clay meticulously removes trapped air. Many artists use a process called "wedging," where the clay is repeatedly folded and pressed to eliminate bubbles. Some even slice the clay with wires to check for hidden pockets of air.

Second, controlling the drying process is critical. Slow, even drying prevents new bubbles from forming as moisture evaporates. Artists often cover works with plastic or damp cloths to regulate humidity.

Third, firing techniques play a vital role. A gradual temperature increase in the kiln allows remaining air to escape before the clay vitrifies. Experienced ceramicists use "candling"—holding the kiln at a low temperature for extended periods—to ensure complete bubble removal.

Some artists also employ specialized tools like needle tools to puncture and release visible bubbles before firing. Others mix additives into their clay to improve its plasticity and reduce bubble formation.

By combining these methods, artists create breathtaking porcelain sculptures free from the distortions and weaknesses caused by air bubbles, showcasing the true beauty of this ancient art form.