Skrodzka, Barbara, Agnieszka Kolmaga, Katarzyna Oszajca, and Anna Gawron-Skarbek. “Influence of Temperature and Brewing Time on the Total Polyphenol Content in Tea”. Technological Progress in Food Processing 1, no. 1 (July 22, 2025). Accessed August 21, 2025. https://tpfp.sggw.edu.pl/article/view/10139.