required. For the heavy type of leaf which is 
intended for the export trade, the curing in the 
‘sheds is done by an open fire, the fuel being 
usually hardwood logs. The smoky, creosotic 
flavor is absorbed by the leaf, and, although 
this flavor is not relished by the smokers of the 
U. S., it is much liked in Europe. The curing 
in such cases may last for 4 or even 5 five days. 
The tobacco is suspended on poles by the stalks 
and the fires are built on the floor immediately 
under them so that the carbonaceous products 
are easily absorbed by the open pores of the 
leaf. 
The chewing and pipe smoking tobacco, as 
well as cigarette tobaccos including all the 
bright yellow tobaccos used in the U. S. are 
usually cured by Flue curing. In this case 
the heat comes from pipes which run around the 
curing houses and are fed from a furnace in an 
adjoining chamber or in a cellar. The tempera- 
ture can be easily regulated. “Flue” curing is 
generally completed in about 4 days. “Flue” 
curing does not clog up the pores of the leaf 
which therefore remain more absorbent than in 
the open fire cured tobacco. This is an import- 
ant matter for the manufacturers because the 
flue cured leaf will absorb twice as much of the 
flavoring sauces (which are added to certain 
65 
