Sunshine-cured tobacco, Bastam, Iran Curing and subsequent growing old allow for the slow oxidation and degradation of carotenoids in tobacco leaf. This generates specified compounds during the tobacco leaves and provides a sweet hay, tea, rose oil, or fruity aromatic taste that contributes into the "smoothness" of the smoke. https://arthurjqkct.homewikia.com/11325229/the_5_second_trick_for_cigarettes