Overseasidol.com — Leo Wu once again impressed the public with his dedication to acting after revealing a behind-the-scenes habit during a brand livestream event on January 17, 2026.
Speaking at a Cold Acid Spirit promotional broadcast, the actor shared how filming in extremely cold conditions can cause visible breath vapor, which may disrupt visual continuity or compromise the realism of certain scenes.
To prevent this issue, Wu adopts an unconventional yet practical solution by chewing ice cubes or holding ice water in his mouth before filming begins.
By lowering the temperature of his mouth and airways, he minimizes the appearance of breath condensation on camera.
According to Leo Wu, this technique is often used during winter shoots, especially for scenes that demand seamless visuals and emotional consistency.
He also touched on the importance of dental care, noting that such habits are closely linked to oral health during demanding filming schedules.
His candid explanation quickly drew admiration from fans, who praised his commitment to maintaining high production standards down to the smallest details.
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