Sun-cured tobacco, Bastam, Iran Curing and subsequent aging allow with the sluggish oxidation and degradation of carotenoids in tobacco leaf. This provides selected compounds while in the tobacco leaves and offers a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes on the "smoothness" in the smoke. https://donovanmanzl.wikiconversation.com/7091599/new_step_by_step_map_for_tabacco