No, in most cases, these are natural marks created by handwork and are not defects.
During the pottery-making process, subtle traces may appear at various stages, including forming, glazing, and firing.
However, if there are any noticeable chips, cracks, or peeling of the glaze, the item may be defective. In that case, please contact our concierge team and attach photos.
Concierge team: info@musubikiln.com