Changing oils did not make any noticeable changes in the bread flavour or texture. It’s all the same in my eyes! I will keep the bottles as someday I hope there to be liquid refill stations for products. They would make cute vases too. If ever I make fermented drinks or re start apple cider vinegar, they will make good storage options. Glass on PEI gets recycled by means of crushing and reusing as aggregate for construction. I believe we need to focuse on reusing a product as is, rather than adding more energy to its process or making it unreusable indefinitely.
As much as I looked, I could not find vegetable oil in glass or refill style for the recipes that I use at home, mainly bread. I decided that I would try using sunflower oil, it is in glass, but more expensive than vegetable oil. I will have to ask around at the farmer’s market and see if anyone makes oils, or maybe see if anyone is interested!