PROBLEM TO BE SOLVED: To provide a freeze concentration method for efficiently manufacturing a concentrated tea extract excellent in flavor with overcoming a problem of concentration of tea extract by a freeze concentration method which can manufacture an extract maintaining excellent flavor where pure ice crystal and the extract cannot be separated because formation of ice containing a tea solid content occurs with rapid.SOLUTION: By adjusting an extract of teas to Brix 7.3% or more with adding dextrin, a high quality concentrated teas extract excellent in flavor can be efficiently provided.COPYRIGHT: (C)2015,JPO&INPIT