Sunshine-cured tobacco, Bastam, Iran Curing and subsequent getting old let for the sluggish oxidation and degradation of carotenoids in tobacco leaf. This generates certain compounds within the tobacco leaves and gives a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes to the "smoothness" of the smoke. https://manueliaqft.wikikarts.com/1358042/tabacco_options