Sunlight-cured tobacco, Bastam, Iran Curing and subsequent getting older allow with the gradual oxidation and degradation of carotenoids in tobacco leaf. This produces selected compounds while in the tobacco leaves and provides a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes into the "smoothness" in the https://broadfar.com/non-combusted-cigarettes-a-safer-alternative-or-just-a-myth/