Four experiments have been done on the influence of times of infusion, temperature, time and ratio of tea to water on the
dissolving characteristics of fluoride and aluminum in brick tea. According to the results, the behaviors of F and Al which
found their way into tea liquor were analyzed and the conclusions have been drawn: the dissolution of F and Al is not synchronous
and after the elements find their way into tea liquor respectively, they will be reset to form complexes of F and Al.
Key words brick-tea - fluoride - aluminum - dissolution - characteristic