And a method of manufacturing the same bitter buckwheat tea

摘要

PROBLEM TO BE SOLVED: To obtain Fagopyrum tararicum tea containing cis-umbellic acid as a nutrient thereof, by immersing the grains of F. tararicum into water to penetrate water into the central parts thereof, then steaming to make an α-form thereof, removing chaffs after drying, and roasting the seeds to remove the bitter taste of the F. tararicum. SOLUTION: This Fagopyrum tararicum tea containing cis-umbellic acid expressed by the formula, is obtained by immersing the grains of the F. tararicum into water for a prescribed period of time to penetrate water into the central parts thereof, then steaming the grains housed in a hermetically sealed container by a saturated steam, further completely making an α-form thereof by using a super-heated steam, then removing chaffs after drying the α-form grains, crushing the seeds of F. tararicum, then roasting the crushed material at 180-200 deg.C for 2.1min to remove the bitter taste of the F. tararicum.