FIELD: food industry.
SUBSTANCE: invention relates to the tea industry. Rosebay leaves are collected, sorted, pre-wilted to moisture content of 55–70% and twisted. Twisted leaf is treated with vitamin B6 solution in amount of 75–140 mg of vitamin per 1 kg of initial raw material. Treated sheet is subjected to two-step fermentation. First fermentation step is carried out in the darkness under anaerobic conditions, under vacuum at pressure of 30–100 mm Mercury or in a medium saturated with nitrogen or carbon dioxide for 1–6 hours at temperature of 31–50 °C. Second fermentation stage is carried out in aerobic conditions at temperature of 24–35 °C until fruity notes formation in smell and product color change to characteristic dark green. Product is dried till residual moisture content is 7–12 %.
EFFECT: invention allows to produce tea from rosebay with increased biological value.
1 cl, 8 ex
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