You've got the wrong Tobacco. Chewing tobacco is basically Cigar Tobacco that wasnt good enough to roll "dog rackets" with. Cigar Tobacco is absorbed through the mouth, wheher puffed or chewed. Its already been cured, the curing process is basically a polite way of saying
composted. {Same goes for dark Tea} Apparently people pay more if the word cure is used.... kinda like calling rusted ass metal "patina". Copenhagen is often called "worm dirt"... you dont even want to know how true that is.
What you want is a Burly, or maybe a Virginia Tobacco. Now THAT type is cured with methods recognized by weed pharmers... mostly hanging in a dark place to dry.
Scroll down the seed list to
Nicotiana Tabacum...
http://www.jlhudsonseeds.net/SeedlistN.htm $2 fiddy for about 2,000 seeds .. small seeds that fit in between your fingerprints. You can legally grow 1/10th of an acre.
For Blunt Wrappers "Jumbo Stalk Black Mammoth" is a good one. Wrapper is shade grown. giant 3ft long leaves. An excellent decoy plant to distract aphids and whatnot... the plant executes all bugs that sample it.