Solar-cured tobacco, Bastam, Iran Curing and subsequent ageing enable for your slow oxidation and degradation of carotenoids in tobacco leaf. This produces particular compounds while in the tobacco leaves and gives a sweet hay, tea, rose oil, or fruity aromatic taste that contributes into the "smoothness" on the smoke. https://trevorebvoh.ktwiki.com/1316634/5_essential_elements_for_smoke