Solar-cured tobacco, Bastam, Iran Curing and subsequent growing older allow for the slow oxidation and degradation of carotenoids in tobacco leaf. This generates particular compounds within the tobacco leaves and provides a sweet hay, tea, rose oil, or fruity aromatic taste that contributes towards the "smoothness" of the smoke. https://limawebdirectory.com/listings668582/the-smart-trick-of-smoke-that-no-one-is-discussing