Eight-square drier was used for polishing in the experiment.The crassitude summer or autumn tea leaves were polished tighter by the drier than by single drum polishing machine.

• 用八角炒干机进行加温车色，与专用单筒车色机相比，能将夏秋粗大茶(4、5、6筛号茶)车得更紧结。