Sparkling water is a type of water generally characterized by the presence of carbon dioxide, obtained through the carbonation process: in principle, it is an industrial product, sold by the majority of small, medium and large-scale distribution. In reality, however, it is also possible to obtain sparkling water through a domestic production process, with those systems to carbonate the water and, in many cases, also to add a particular aroma. In yet other cases, however, it is possible to simply add sachets of bicarbonate to make the natural water obtained from the tap more delicious.