The German mineral water industry started using a standardized glass bottle in 1969, all of these are reused: https://de.wikipedia.org/wiki/Normbrunnenflasche

The German mineral water industry started using a standardized glass bottle in 1969, all of these are reused: https://de.wikipedia.org/wiki/Normbrunnenflasche https://de.wikipedia.org/wiki/Normbrunnenflasche If we could do it 50 years ago, we can do it now. It's a solved problem.