Sun-cured tobacco, Bastam, Iran Curing and subsequent ageing enable for the gradual oxidation and degradation of carotenoids in tobacco leaf. This produces specific compounds from the tobacco leaves and gives a sweet hay, tea, rose oil, or fruity aromatic taste that contributes towards the "smoothness" from the smoke. In https://martinpldvm.mdkblog.com/39545068/rumored-buzz-on-tabacco