Earlier quoted context omitted.
We've worked to reduce plastics & chemicals in our house. Some things we do: * We use silk dental floss (we use Radius) * We use glass storage containers instead of Tupperware * For cooking, we use All-Clad. * If a recipe calls for non-stick (e.g., pancakes) I use a braiser from Le Creuset, which works reasonably well. (Edited: formatting)
Honest question: Why do you try to replace Tupperware? Plastic has a bad reputation because of its longevity, but that also makes it a good material for containers. That - in turn - makes it bad for throwaway packaging of course. I might have missed something, that's why I ask.
I also switched to glass containers and stainless steel everything, about 20 years ago, out of distrust for reasons like in this article.