Solar-cured tobacco, Bastam, Iran Curing and subsequent growing old allow with the sluggish oxidation and degradation of carotenoids in tobacco leaf. This produces certain compounds from the tobacco leaves and offers a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes into the "smoothness" with the smoke. https://gunnerjmspl.wikiexpression.com/4421582/the_2_minute_rule_for_cigarettes