We end up ingesting a lot of toxins just by using the wrong cookware and utensils — coatings wear off and plastics leach into food, especially with heat. I use only materials I'm comfortable with directly touching my food.
Non-stick coatings wear off over time and end up in food. Plastic items also shed particles, especially with heat. Rule of thumb: stainless steel or glass over plastic for everything in the kitchen. When something says "microwave safe," it means it won't fall apart — not that it's safe to eat from.
I use the EWG to evaluate dish cleaning products for toxicity — residue can also end up in food.