Process for the Adjustment of the Relative Quantities of Caffeine and Tannin in the Manufacture of Tea.

摘要

10,471. Bell, W. T., Vasey, S. A., and Steadman, W. M. May 2. Tea preparations.-The excess of tannin or of caffeine in tea is neutralized by the addition, in the first case, of caffeine or a salt thereof, and, in the second case, of tannin or a compound thereof. A solution of the substance is sprayed into the air currents used for drying, or on to the tea during fermenting or rolling.