Earlier quoted context omitted.
Ceramic, as a glass, is valid too. Pottery I’m thinking as well but maybe with some caveats such as non-leaded paint. Edit-I wish store items could be bought in reusable containers made from such materials. It would make groceries heavy and the cost of the containers might need to be “leased” some way (like old milk jugs were perhaps). But I’d do it.
A few big companies have tried to start packaging reuse programs with plastic containers and that didn’t work on a large scale because of all the cost and inconvenience… add in the weight and fragility of glass and you’re even farther from a cost-effective system.
Hadn't seen them myself. I do figure that if it were to work, it would require the customer side to be involved in the financing of it. Kind of like buying a growler for a local brew pub. That probably wouldn't scale to every item a person buys in a store perfectly - hence the "lease" term above. Need some flexibility on the corners.