... : 25kg/drum or 10kg/carton Specification:1. Total tea polyphenols≥40%Total catechins≥20 %EGCG ≥8%Caffeine ... 0.5-10% & Caffeine ≤0.5%3. Total tea polyphenols≥60%Total catechins≥40 %EGCG ≥20%Caffeine 0 ... 0.5-10% & Caffeine ≤0.5%7. Total tea polyphenols≥95%Total catechins≥70 %EGCG ≥40% & ≥45Caffeine ... 0.5-8% & Caffeine ≤0.5%8. Total tea polyphenols≥98%Total catechins≥80 %, 85 %, 90%EGCG ≥50%, ...