My nephew after using a Soda Stream he got last christmas has done more damage to his teeth in 3 months than would be done in years drinking tap water. His dentist was shocked...BEWARE!
A chemical reaction in your mouth turns the CO2 into carbonic acid, not only giving the drink a tangy, zesty, refreshing bite, but also making it more acidic. That's where the potential for dental erosion comes in, because the acid in drinks and foods can wear away your tooth enamel.