GREEN AND GROUND COFFEES. 927 
It is not unusual for roasters to employ a small amount of glazing 
material, as they claim, to protect the coffee. 
The accompanying table gives the results of a few examinations of 
coffees by Stutzer and Reitnair’s method (see page 913) for the deter- 
mination of the cold-water extract: 
Serial No. Extract. Serial No. Extract. 
Per cent. Per cent. 
Tt eee ee oem G33" GSe5-3 = So 0. 63 
Gia eet 2 S88 GSsn-. oer . 85°] 
S863... =. SSe2= 4 hOSee soo aS 1,12 
Ly | See ape 1 .40 OSS8 32 
lift Speers ss i WE. on 92 
Gig ban es so: 92 || 6890..__...---- 54 
oS bow Sas 711 gd) ES 7 iy = eae 1.76 
Gabi 2 Xe ae a7 
Stutzer and Reitnair give from .44 per cent to .72 per cent as the 
range of the organic extract as determined by their method. 
Seven of the samples included in the above table gave a higher 
extract than the upper limit given by these chemists, hence itis fair to 
presume that these coffees were roasted with a glazing material. No. 
6572 contains imitation coffee, which may account for the high organic 
extract. 
It is probable that the retail dealer is not usually directly to blame 
in foisting imitation coffee upon the market, though he must in many 
cases know that he can not obtain a good merchantable coffee for the 
price he is paying. In most cases the imitation coftee is probable intro- 
duced by the roaster. The price paid for roasting coffees is usually 
very small and the competition is very sharp. A dishonest roaster can 
so easily increase his profits by the addition of imitation coffee, and 
with so little fear of detection, that he is often tempted and probably as 
often yields to temptation. 
GREEN COFFEES. 
A large number of green coffees, bought on the open market, were 
examined, all of which were genuine. It was impossible to detect 
cases where coffee of one grade was sold for that of another. There 
were undoubtedly many such samples. 
GROUND COFFEES. 
Ground coffees afford a very wide field for adulterations. This class 
of coffees is sold largely by the smaller dealers. The large stores 
usually grind the cotfee to order, but in the latter case the presence of 
the purchaser does not always insure pure coftee. 
