Last thing remaining is to make clear of what "bottle" word means in the calculations. I mean that a bottle can be containing either some food (pure water, soda

Last thing remaining is to make clear of what "bottle" word means in the calculations. I mean that a bottle can be containing either some food (pure water, soda, milk products) or some chemistry. Former (Coca-cola in my mind) is kind of never reused in my country, but latter (some P&G products for example) is almost always from reused material.