1. Fabrication of high pressure rotorvane for quality in orthodox tea processing
Authors : Cosmas K. Langat, Abel N. Mayaka, Charles M. M. Ondieki
Pages : 19-25
DOI : http://dx.doi.org/10.21172/1.143.04
Keywords : RotorvaneOrthodox TeaCTCBlack TeaMaceration Abstract :Orthodox processed tea refers to loose large whole particle tea leaf produced using traditional (or orthodox) methods of tea production, which involve plucking, withering, maceration/rolling, oxidation/fermentation and drying. Current orthodox tea technologies produce teas of very low quality but have large loose-leaf particle teas preferred by Orthodox tea consumers. Conventional black tea process includes CTC (Cutting, Tearing and Curling) which replaces the rolling stage in the Orthodox tea processing. The CTC tea manufacturing process produces high quality teas but is dusty making the tea undesirable to some consumers. From pilot plant laboratory trials, it was found out that the higher the Rotorvane pressure the higher the Orthodox made tea quality up to an optimum at 25 MN/m2, which gives the highest quality on Taste (T), Colour (C) and Mouthfeel (M) scores matching CTC made tea quality. Design of the high pressure Rotorvane [1] was done to determine minimum parameters required. This research paper is on fabrication of high pressure Rotorvane as per the design for quality improvement of large leaf teas. The fabrication is expected to produce Orthodox Large Particle Tea that looks and feels like orthodox large leaf tea but has the liquor characteristics, when infused and tasted, matching conventional CTC made tea quality.
Citing this Journal Article :Cosmas K. Langat, Abel N. Mayaka, Charles M. M. Ondieki, "Fabrication of high pressure rotorvane for quality in orthodox tea processing", Volume 14 Issue 3 - September 2019, 19-25
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