Solar-cured tobacco, Bastam, Iran Curing and subsequent growing old let with the sluggish oxidation and degradation of carotenoids in tobacco leaf. This generates particular compounds in the tobacco leaves and offers a sweet hay, tea, rose oil, or fruity aromatic taste that contributes towards the "smoothness" with the smoke. https://broadfar.com/oraco-pioneering-a-smokeless-future-with-innovative-nicotine-delivery/