Denmark has standard DS 53 for a reusable beer or soda bottle. They are very common in bars, and beer sold in supermarkets. Soda in supermarkets tends to be in

Denmark has standard DS 53 for a reusable beer or soda bottle. They are very common in bars, and beer sold in supermarkets. Soda in supermarkets tends to be in plastic bottles or cans. According to this very old report, in the 1990s these bottles were refilled 35 times on average. (Much of the report is very outdated.) https://ec.europa.eu/environment/pdf/waste/studies/packaging/denmark.pdf https://ec.europa.eu/environment/pdf/waste/studies/packaging...