In our study we have proven that Bass model depicting the market spread of different products is suitable also for the study and forecast of mineral water consumption. Years in the near future can be predicted trustworthily. Nevertheless, calculation of the optimal parameters is expedient to be executed after every year of consumption data. Our data are belonging from the years of exponent consumption growth (1979–2007), that is to say, from the time before saturation of market, thus one can apply both Bass model and exponent model. We made forecasts for the current forthcoming years by the Bass model.