Sunlight-cured tobacco, Bastam, Iran Curing and subsequent growing old allow for your sluggish oxidation and degradation of carotenoids in tobacco leaf. This provides particular compounds inside the tobacco leaves and provides a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes for the "smoothness" on the smoke. https://broadfar.com/nuso-heated-tobacco-smarter-alternative-to-traditional-smoking/