One must also look for obvious physical defects, for instance, at the mouth of the teapot, the inner rim of the lid, the place where the knob of the lid connects to the lid, and so on. Any spots or marks should be carefully checked for as well.
有些商人將裂縫用膠黏合，再以茶垢塗黑掩飾，因此對特別汙黑的部位，尤須細心觀察。還應仔細察看較易破損之處，如鈕、蓋接合處，與壺蓋邊緣、壺口等。」