Such utensils should be heated gradually, scraped carefully, and handled without knocking, to avoid "chipping".
"Ontario Teachers' Manuals: Household Management"
Ministry of Education
The art of chipping flint to a face for the purpose of making lines or patterns in walls used to be carried to great perfection, and even old garden walls may be seen so ornamented.
"Wild Life in a Southern County"
Richard Jefferies
Instead of chipping in my share, and settling each account, to receive munificence with grateful mind is an acknowledgment which no amount of money can purchase.
"Botchan (Master Darling)"
Mr. Kin-nosuke Natsume, trans. by Yasotaro Morri