No-stick finishes like Teflon and Silverstone scratch easily and release little bits of plastic into the food when cooked, as well as toxic fumes over high heat. I've never like food that was hot on the outside and cold on the inside. Imagine if the biological effects of microwaves were revealed to the public. For some reason, when the heat source is below the food, more carcinogens are created whether a charcoal or gas grill is used. Broiling in the oven with the heat source above the food seems to be o.k.
Some types of plastic are carcinogenic, others migrate from packaging into our food and water.
Typically, the softer the plastic, the less chemically stable it is, and the more it vaporizes over time even after the smell disappears. PVC can cause cancer, birth defects, genetic changes, vision failure and liver dysfunction. When PVC is burned in incinerators it creates Dioxin, a very potent known carcinogen that accumulates in fat tissue. Dioxin lands on the crops that we and the animals eat, organic and conventional alike. The amount ingested is greatly reduced by avoiding meat and dairy products as most toxins, including Dioxin, tend to accumulate in fat tissue.