When did corningware stop using lead?
Lead was phased out of corningware in the early 1960s. The company switched to plastic in the late 1960s. Which vintage CorningWare is worth the most? The most valuable CorningWare is the 1870s-1910s variety. These years saw a significant change in the way glass was made, as the use of a new furnace called the ... Read more...