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Chapter24 : Tobacco and manufactured tobacco substitutes
Note. 1. This Chapter does not cover medicinal cigarettes (Chapter 30). Subheading Note. 1. For the purposes of subheading 2403.11, the expression "water pipe tobacco" means tobacco intended for smoking in a water pipe and which consists of a mixture of tobacco and glycerol, whether or not containing aromatic oils and extracts, molasses or sugar, and whether or not flavoured with fruit. However, tobacco-free products intended for smoking in a water pipe are excluded from this subheading. GENERAL
Tobacco is obtained from various cultivated varieties of the genus Nicotiana of the Solanaceae family. The size and shape of the leaves differ from one variety to another.
The harvesting method and curing process depend on the variety (type) of tobacco. The plant may be cut whole, at average maturity (stalk cutting), or the leaves may be picked separately, according to their state of maturity (priming). Thus, tobacco may be cured either as whole plants (on the stalk) or as separate leaves.
The various methods of curing are sun curing (in the open air), air curing (in closed sheds with free circulation of air), flue curing (in hot air flues), or fire curing (with open fires).
Before packing for shipment, the dried leaves are treated in order to ensure their preservation. This may be done by controlled natural fermentation (Java, Sumatra, Havana, Brazil, Orient, etc.) or by artificial re‑drying. This treatment, and the curing, affect the flavour and aroma of tobacco, which undergoes spontaneous ageing after packing.
Tobacco so treated is packed in bundles, bales (of various shapes), in hogsheads or in crates. When so packed, the leaves are either aligned (Orient) or tied in hands (several leaves tied together with a band or with another tobacco leaf), or simply left as loose leaves. They are always tightly compressed in order to ensure preservation.
In some cases, in addition to (or instead of) fermentation, flavouring or moistening substances are added (casing) in order to improve the aroma or keeping qualities.
This Chapter covers not only unmanufactured and manufactured tobacco but also manufactured tobacco substitutes which do not contain tobacco.
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