Sunlight-cured tobacco, Bastam, Iran Curing and subsequent ageing allow for the sluggish oxidation and degradation of carotenoids in tobacco leaf. This produces particular compounds inside the tobacco leaves and gives a sweet hay, tea, rose oil, or fruity aromatic taste that contributes towards the "smoothness" with the smoke. Note: https://beausfsfq.westexwiki.com/1400461/the_smoking_diaries