PROBLEM TO BE SOLVED: To provide a method for producing a separated liquid from used tea leaves enabling efficient removal of used tea leaves from extract liquid produced by using minute tea leaves or soft tea leaves.SOLUTION: The method for producing a separated liquid from used tea leaves comprises the following process: supplying soft tea leaves 1 such as minute tea leaves containing 50-100 wt.% of fractions passing through the sieve of 20 mesh into an extraction device 11 to produce extract liquid 3 in the extraction device 11 passing the extract liquid 3 in the extraction device 11 through a screen 14 comprising a perforated panel to eliminate used tea leaves 6 in the extract liquid 3 by the screen 14 receiving the extract liquid 3 passing through the screen 14 and charging the liquid into a tank 15 to produce separated liquid 5 from used tea leaves. The perforated panel forming the screen 14 comprises a punching metal where the rate of hole area of holes 14a is 20-50%, and the inner diameter of each of the holes 14a is 1.5-2.5 mm.COPYRIGHT: (C)2008,JPO&INPIT【課題】微細茶葉や軟質の茶葉を用いて製造された抽出液から効率的に茶葉を除去することができる茶殻分離液の製造方法を提供する。【解決手段】20メッシュ通過画分を50~100重量%含む微細茶葉のような軟質の茶葉1と水2とを抽出装置11内に供給し、抽出装置11内で抽出液3を製造する。抽出装置11内の抽出液3を有孔板からなるスクリーン14に通し、抽出液3中の茶殻6をスクリーン14により除去する。スクリーン14を通った抽出液3を受けタンク15内に供給して、茶殻分離液5を製造する。スクリーン14の有孔板は孔14aの開孔率が20~50%で、かつ孔14aの内径が1.5mm~2.5mmとなるパンチングメタルからなる。【選択図】図1
