Zarda is prepared by cutting tobacco leaves into small pieces and boiling them in water with slaked lime and spices until the water evaporates
The temperature ( T 50 ) at which CVC reached half of the difference between the values at 32 and 42C was not significantly affected by nicotine (39.4 0.7 versus 39.5 0.9C before and after cigarettes, respectively, and 39.4 0.6 versus 39.4 0.7C before and after nasal spray, respectively)
United StatesMarylandPrince George's CountyAccokeek20613Tobacco Republic Partial Data by Foursquare
Cardstock sits right in the middle
Temperature is another major factor
As of January 1, 2026, 1,086 municipalities, plus 28 states, commonwealths, and territories restrict e-cigarette use in 100% smokefree venues