246 Mr R. Warrington on the 



on the other side, if roasted first, without the process of fer- 

 mentation or withering, and then finished in the Poey-long, a 

 kind of green tea is produced. 



In the operations for the manufacture of green tea, on the 

 contrary, the freshly-picked leaves are roasted in the Kuo at 

 once, without delay, at a high temperature ; rolled and 

 roasted again and again, assisted sometimes with a fanning 

 operation to drive off the moisture ; and always with brisk 

 agitation until the drying is completed. 



The marked differences in the mode of manufacture of 

 black and green tea, will, I consider, after what has been 

 stated, fully account for all the variation of physical and 

 chemical properties to which I have before alluded. 



Adulteration and Sophistication of Teas. 



Since writing my former paper, several teas have come 

 under my notice, which must be classed under this head. The 

 first I shall mention is a sophistication which has been car- 

 ried on in this country to some extent, and consists in giving 

 the appearance of green tea to an imported black tea. The 

 material used, as the bodies for this process of manufacture, 

 is a tea called scented caper ; it is a small closely -rolled 

 black tea, about the size of small gunpowder, and, when 

 coloured, is vended under this latter denomination, the differ- 

 ence in price between the scented caper and this fictitious 

 gunpowder being about Is. per lb., a margin sufiicient to 

 induce the fraud. This manufacture has been carried on, I 

 understand, at Manchester, and was kept as secret as pos- 

 sible ; and it was only after considerable trouble that some 

 of my friends succeeded in obtaining two different specimens 

 for me, that could be fully depended on, as originating in this 

 manufactory. It appears that it is generally mixed with 

 other tea, so as to deceive the parties testing it. How this 

 manufacture was conducted, I am not prepared to say ; but 

 some preparation of copper must have been employed, as the 

 presence of that metal is readily detected in the specimens I 

 received. I believe, however, that this sophistication has 

 ceased. 



I have now to call your attention to another adulteration 



