| 摘要 |
Dried tea flakes are prepared by vacuum drum drying. A tea extract having a solids content of 40 to 55% is applied to a drum in a film having a thickness of up to 0.09 centimeters. The drum is maintained at an internal temperature of 95 DEG to 125 DEG C. Water is evaporated from the film under vacuum of 3 to 15 Tor or in 10 to 150 seconds to result in dried product having an apparent density of less than 12 grams per 100cc. |
