MATURING RANGE
Maturing range: when the clay body or color that is being fired reaches its correct strength and compactness, this is known as the maturing point. If under-fired, it is weak and porous and when tapping it to check that it is not broken, the sound is flat. If over-fired, it can be very brittle and when being fired it can break down completely into a molten state in the kiln.
