What nice plastic bottles. They are designed for making soda and carbonated water using the corresponding device of the same brand. We use them for classic purposes and they are indeed wonderful.

I bought it with the aim of always having fresh mineral water, but it's a pity that it's very expensive to replace and difficult to buy, and filling it with this option is not available in the country. In Germany, for example, you can buy them or fill them in any supermarket