Sun-cured tobacco, Bastam, Iran Curing and subsequent growing older allow to the sluggish oxidation and degradation of carotenoids in tobacco leaf. This generates selected compounds during the tobacco leaves and provides a sweet hay, tea, rose oil, or fruity aromatic taste that contributes on the "smoothness" with the smoke. https://broadfar.com/the-benefits-of-switching-to-nusos-heated-tobacco-solutions/