Several grades are produced in Venezuela, determined by geographical position, altitude and method of curing and preparing for market.
Diseases which occur in curing are important.
When centrifugals were adopted for purging the whole crop (they had long been used for curing the second or third sugars), the system then obtaining of running the sugar into wagons or coolers, which was necessary for the second and third sugars' cooked only to string point, was continued, but latterly " crystallization in movement, a development of the system which forty years ago or more existed in refineries and in Cuba, has come into general use, and with great advantage, especially where proprietors have been able to erect appropriate buildings and machinery for carrying out the system efficiently.
Sandy soils produce tobaccos with a thin leaf, curing to a yellow or bright red colour.
Air curing is essentially similar to sun curing.