Why are CORELLE cups, mugs and Chinese rice bowls made of a different material from CORELLE plates and bowls?
CORELLE glass compressing process which manufactured CORELLE bowls and plates is not applicable to make CORELLE cup, mug’s shapes with handles and foot of Chinese rice bowl. Hence, CORELLE cups, mugs and Chinese rice bowl are manufactured in Japan using an ultra hard porcelain material which is almost similar to CORELLE glass in strength and colour.
