Effect of the “Multiple Rolling Process” during the Drying and Production of Tea Leaves

Abstract

In this study, we proposed and examined the “Multiple Rolling Process” as a new tea manufacturing system involving the application of the rolling process many times sequentially. We found that this method increased the drying rate and extended the first falling drying rate period. Further we discovered a higher moisture transfer from stem to leaves. Following sensory testing, we judged that the test section had a better quality than the control, but the particle size was different from the section in crop season. The new system led to efficient drying and increased yield in terms of weight and quality, but the purpose and season need to be considered prior to application.