Glass Cookware Is Quite Safe
Glass cookware is quite safe if it is new and handled to prevent breakage. Some not so healthy components used in the production of glass such as lead and cadmium leach into food during the cooking process. It is also important to note that the various pigments and paints involved in the decoration of early glass and ceramic products can also leach unhealthy chemicals into the foods we then consume.
Canada and the U.S.A. have strict production standards and most products now made in these countries are deemed safe and acceptable for human use. However, older glass products did not have to comply with these regulations as they were manufactured before these regulations came into being. As well there are many glass cookware products that have been brought into country as personal effects by immigrants from neighbouring countries.
This means that there are unfortunately a lot of glass baking and serving dishes out there that do not comply with today's stricter health standards. I know that I have older glassware that I have inherited from my mother and I am sure that a lot of you do to.
The other health risk associated with glass baking dishes is the risk of the glass itself shattering suddenly, and with a tremendous force, thus causing serious personal injury. Glass in cookware can have a tendency to break into large jagged pieces rather than to shatter like tempered glass. My advice to you is to keep those older pieces of glass cookware on the shelf. They are lovely to display but may not be something you should be preparing food in.
What Is the Cookware Material of Your Choice?
Stainless steel
Glass
Cast Iron
Non-stick
Aluminum
Silicone
Stoneware or pottery
Copper
Other