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Maximum Preservation of Native Catechins Through Immediate Stabilisation Tender buds and young leaves plucked at dawn undergo immediate pan-firing using traditional kill-green methodology, instantly halting enzymatic oxidation and preserving the leaf’s original catechin architecture. Full hand rolling shapes the leaves without mechanical stress, and gentle dehydration stabilises the preserved compounds. The infusion yields a vibrant greenish-yellow liquor with smooth vegetal freshness and refined structural depth, reflecting minimal biochemical alteration. The scientific profile shows 26–30% polyphenols, 23–27% catechins per dry weight, and an antioxidant activity of 674.88 μmol Fe²⁺ equivalents/g. This high catechin concentration, particularly rich in EGCG according to the catechin profile, provides powerful antioxidant activity. These compounds are scientifically associated with protection against oxidative cellular damage, support of neurological clarity gut health, metabolic balance, and long-term physiological wellness.