摘要：Tea is one of the most popular beverages consumed worldwide. Black tea has protective effect in cancer progression and heart diseases. Our aim was to determine the contents of ten different firm's black tea samples sold in Ankara local markets and to evaluate whether obtaining these results were within the Turkish Food Codex values or not. These contents were moisture, ash, ash solved in water, alcality of ash solved in water, ash unsolved in acid, water extract, crude cellulose, non-oxidation piece, dye and caffeine amounts. According to the data obtained in our research, the average values of ash, ash solved in water, alcality of ash solved in water, ash unsolved in acid, water extract, crude cellulose, non-oxidation piece and caffeine found in black tea samples were within the Turkish Food Codex values and dye was not found.
