Sun-cured tobacco, Bastam, Iran Curing and subsequent getting old permit for the slow oxidation and degradation of carotenoids in tobacco leaf. This produces specified compounds during the tobacco leaves and provides a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes for the "smoothness" in the smoke. https://nmate33108.yourkwikimage.com/1359874/not_known_factual_statements_about_cigarettes