Sunlight-cured tobacco, Bastam, Iran Curing and subsequent getting old allow with the gradual 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 towards the "smoothness" of the smoke. https://nmate80125.shivawiki.com/7216919/what_does_smoking_mean