Sun-cured tobacco, Bastam, Iran Curing and subsequent aging allow with the sluggish oxidation and degradation of carotenoids in tobacco leaf. This creates particular compounds within the tobacco leaves and gives a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes on the "smoothness" on the smoke. Smoke https://broadfar.com/heated-tobacco-shaping-a-safer-sustainable-smoking-future/