R. Ravichandran et R. Parthiban, THE IMPACT OF MECHANIZATION OF TEA HARVESTING ON THE QUALITY OF SOUTHINDIAN CTC TEAS, Food chemistry, 63(1), 1998, pp. 61-64
The chemical quality parameters and sensory evaluation of black teas c
hanged with method of plucking. Hand-plucked teas were very rich in th
eir green-leaf biochemical precursors and had higher contents of made-
tea quality constituents than shear-plucked teas. The quality deterior
ation was mainly due to mechanical injury and non-selective plucking w
ith shear-harvesting. However, tea obtained by shear-harvesting from a
continuously sheared field over a prolonged period was found to be su
perior. The use of shears reduced the yield and increased the plucking
average with a net decrease in cost of production compared to hand pl
ucking. (C) 1998 Elsevier Science Ltd. All rights reserved.