Abstract:

This paper aims to summarize and scientifically evaluate the effectiveness of existing fluoride reduction measures, providing validation and reference for further research on fluoride reduction strategies. This paper employed a combination of literature analysis, field investigations, and experimental validation to systematically assess the feasibility and effectiveness of various fluoride reduction measures at different stages, including tea tree cultivation, tea leaf harvesting, raw tea production, brick tea production, and tea consumption. Through systematic analysis and experimental validation, it was found that selecting low-fluoride tea tree varieties during cultivation and controlling the harvest time during tea leaf collection effectively reduced the fluoride content at the source. The water washing process during brick tea production was able to lower the fluoride content in the tea leaves to some extent. Additionally, adopting scientifically recommended tea-drinking practices reduced the fluoride intake from brick tea. Calcium phosphate and hydroxyapatite were identified as safe and effective fluoride adsorption materials. However, fluoride reduction effects were not significant when improving tea garden environments, using water blanching techniques, or adding fluoride-reducing materials during the pile fermentation process. Research on fluoride reduction measures in brick tea needs to further enhance the scientific evaluation process, improve the feasibility of practical applications, and fully consider the impact of these measures on the quality and safety of brick tea.

Key words: brick tea, fluoride reduction measures, analysis and validation, future prospects