Tricky question... I do the sound test myself as it’s more reliable than colour of the clay. Clay colour is tricky as especially for old teapots a lot of blends were used which results in sometimes unusual colouring.
And yes, there are specialised people who re-fire underfired teapots. Some also do a second firing as it is part of a technique to repair chips and other damage that afterwards is as good as invisible.
FS: Qing/ROC Zisha, 140ml
@BokBok wrote: ↑Fri Feb 14, 2020 6:07 pmTricky question... I do the sound test myself as it’s more reliable than colour of the clay. Clay colour is tricky as especially for old teapots a lot of blends were used which results in sometimes unusual colouring.
And yes, there are specialised people who re-fire underfired teapots. Some also do a second firing as it is part of a technique to repair chips and other damage that afterwards is as good as invisible.
Have you ever did the sound test and ended up breaking the pot?
Never
There's more than one method of sound testing, you can also slowly grind the lid skirt on the rim of the body, which I do with thin walled lids. The rest is just being delicate and respectful to the object.
Density one can feel by holding it in the hands, which can another indication of firing.