What is that barnyard smell to be found in certain snuffs? I have heard this smell might be caused by the way the tobacco is processed. My personal theory is that the source tobacco in question was fertilized by (possibly unpasteurized) manure and the smell got absorbed into the leaf. Maybe we could hear some input from those who are knowledgeable in tobacco farming and commercial snuff-making techniques. That curious smell seems a part of snuff lore. I hope demystifying it will not take the fun away!