Introduction. There are a rising number of publications describing the beneficial effects of Tea in our systemic and oral health (Gardner et at, 2007), reflected upon the reduction of the caries incidence, COPD and plaque index (Jones et at,1999). It described that tea consumed by healthy people don’t produce any significant variability over the salivary pH (Lopez de Bocanera et at,1999; Simpson et at, 2001), however, there effect hasn’t been described over a low salivary pH, therefore, we tested the effect of tea upon patients then a low of salivary pH. Materials and methods. We tested the effects of a black tea infusion on 10 healthy subjects (23-25 years old) with a low cariogenic risk, undergo a low induced salivary pH with a carbonated drink. We took three consecutive samples of saliva every 15 minutes each: 1. basal, 2. post-ingest of the carbonated drink and 3. Post-ingest of black Tea. It was determined the pHs on each sample and results was analyzed with SPSS software through U-Mann Whitney test. Results. The basal pH value was 7,12. Carbonated drink diminished the basal salivary pH to 6,93 (p=.028), and the black tea infusion raised the pH to 7,25 (p=.009). On the matter of the last pH the basal value wasn’t statistically significant (p=.290). Conclusion. In this study, the tea raised the salivary pH on healthy subjects sample to values similars to basal.