PROBLEM TO BE SOLVED: To provide a tea leaf excellent in an extraction efficiency of tannin and a production method of the tea leaf.SOLUTION: A tea leaf is subjected to a steaming step and a primary drying step, and then is pressed to an extrusion plate on which plural holes of 452.16 mm2 or more are formed and cut. A production method of the tea leaf comprises a step for pressing the raw material tea leaf which has been subjected to the steaming step and the primary drying step to the extrusion plate on which plural holes of 452.16 mm2 or more are formed, and cutting the raw material tea leaf. A lower limit of an area of each hole is equal to or more than 615.44 mm2 preferably, and equal to or more than 706.5 mm2 more preferably. An upper limit of the area of each hole is equal to or less than 1017.4 mm2 preferably, equal to or less than 907.5 mm2 more preferably and equal to or less than 803.9 mm2 further preferably.COPYRIGHT: (C)2016,JPO&INPIT【課題】タンニンの抽出効率に優れた茶葉及び茶葉の製造方法を提供する【解決手段】茶葉は、蒸熱工程及び粗揉工程を経た後に、４５２．１６ｍｍ２以上の孔が複数形成された押出板に押し当てて裁断された茶葉である。茶葉の製造方法は、蒸熱工程及び粗揉工程を経た後に、４５２．１６ｍｍ２以上の孔が複数形成された押出板に原料茶葉を押し当てて裁断する工程を有する。孔の面積の下限は、６１５．４４ｍｍ２以上であるのが好ましく、７０６．５ｍｍ２以上がより好ましい。また、孔の面積の上限は、１０１７．４ｍｍ２以下が好ましく、９０７．５ｍｍ２以下がより好ましく、８０３．９ｍｍ２以下がさらに好ましい。【選択図】なし
