Sunshine-cured tobacco, Bastam, Iran Curing and subsequent growing older enable for the gradual oxidation and degradation of carotenoids in tobacco leaf. This generates sure compounds during the tobacco leaves and offers a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes towards the "smoothness" of your smoke. https://broadfar.com/oraco-global-trends-in-heat-not-burn-products/