Sunshine-cured tobacco, Bastam, Iran Curing and subsequent getting older enable for that slow oxidation and degradation of carotenoids in tobacco leaf. This creates sure compounds in the tobacco leaves and provides a sweet hay, tea, rose oil, or fruity aromatic taste that contributes to your "smoothness" of the smoke. https://broadfar.com/the-benefits-of-switching-to-nusos-heated-tobacco-solutions/