Sunlight-cured tobacco, Bastam, Iran Curing and subsequent aging allow with the sluggish oxidation and degradation of carotenoids in tobacco leaf. This makes specific compounds while in the tobacco leaves and gives a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes towards the "smoothness" on the smoke. https://israelkewof.wikilentillas.com/1380031/helping_the_others_realize_the_advantages_of_smoking