Tobacco extract for non-combustible smoking devices
Systems and methods for manufacturing and vaporizing a tobacco extract for use in a non-combustible smoking device are described. These methods include a solution having a volume of a liquid tobacco extract suspended in a hygroscopic liquid glycerol solvent. The systems and methods provide advantages in that the method is substantially free of water and results in an improved tobacco flavor extract.
1. A method for manufacturing a liquid tobacco extract configured for vaporization in a non-combustible smoking device, the method comprising the steps of:
combining a predetermined mass of ground tobacco in a predetermined mass of a hygroscopic liquid glycerol solvent to form a mixture;
increasing the temperature of the mixture from a first temperature to an elevated second temperature, the second temperature being approximately 250 degrees Fahrenheit;
maintaining the mixture at the elevated second temperature for a predetermined period of time of between 100 and 150 minutes to a form a solution having a volume of a liquid tobacco extract suspended in the liquid glycerol solvent;
filtering the mixture to remove the ground tobacco from the solution of the liquid tobacco extract suspended in the solvent having a percentage nicotine of approximately 0.05, a pH of approximately 5.5, and a volume of tobacco specific a nitrosamines of less than 100 nanograms per 35 puffs; and
lowering the temperature of the solution from the second temperature to the first temperature.
2. The method of claim 1 , further comprising the step of pressing the ground tobacco after filtered to remove additional solution therefrom.
3. The method of claim 1 , wherein the predetermined period of time is approximately 120 minutes.
4. The method of claim 1 , wherein a ratio of the hygroscopic liquid glycerol solvent to ground tobacco is approximately 20:1.
5. The method of claim 1 , wherein the predetermined mass of hygroscopic liquid glycerol solvent is approximately 20 times greater than the predetermined mass of ground tobacco.
6. The method of claim 1 , wherein the hygroscopic liquid glycerol solvent is approximately a vegetable glycerol.
7. The method of claim 1 , further comprising the step of adding a predetermined mass of a solvent to the solution to form a liquid tobacco extract having a final percentage nicotine of approximately 0.05%.
8. The method of claim 1 , further comprising the step of adding a predetermined mass of a nicotine extract to the solution to form a liquid tobacco extract having a final percentage nicotine of approximately between 1% and 3%.
9. The method of claim 1 , further comprising the step of adding a predetermined mass of a non-tobacco flavor additive to the solution.
10. The method of claim 1 , wherein the solution is substantially free of water.
11. The method of claim 1 , wherein the first mixture is filtered at a pressure of greater than 1,500 KPa.
12. The method of claim 1 , wherein the solution is substantially free of solid particulates.
13. The method of claim 1 , wherein the solution has an absorbance of between 0.4 AU and 0.6 AU when exposed to a 500 nm wavelength light.
14. A method for vaporizing a liquid tobacco extract configured in a non-combustible smoking device, the method comprising the steps of:
combining a predetermined mass of ground tobacco in a predetermined mass of a hygroscopic liquid glycerol solvent to form a mixture;
increasing the temperature of the mixture from a first temperature to an elevated second temperature, the second temperature being approximately 250 degrees Fahrenheit;
maintaining the mixture at the elevated second temperature for a predetermined period of time of between 100 and 150 minutes to a form a solution having a volume of a liquid tobacco extract suspended in the liquid glycerol solvent;
filtering the mixture to remove the ground tobacco from the solution of the liquid tobacco extract suspended in the solvent having a percentage nicotine of approximately 0.05%, a pH of approximately 5.5, and a volume of tobacco specific a nitrosaimines of less than 100 nanograms per 35 puffs;
lowering the temperature of the solution from the second temperature to the first temperature;
placing a volume of the solution into a cartridge within the non-combustible smoking device adjacent a wicking material;
drawing the solution into the wicking material; and
vaporizing the solution in the wicking material by passing an electrical current through an atomizer.
15. The method of claim 14 , wherein the atomizer is a wire located around at least a portion of the wicking material.
16. The method of claim 15 , wherein the wire has an electrical resistance that causes the temperature of the solution in the wicking material to rise to a third temperature that is at least equal to a vaporization temperature of the solution.
17. The method of claim 14 , further comprising the step of adding a predetermined mass of a nicotine extract to the solution to form a liquid tobacco extract having a final percentage nicotine of approximately between 1% and 3% prior to placing the volume of the solution into a cartridge within the electronic cigarette adjacent the wicking material.
18. The method of claim 14 , further comprising the step of adding a predetermined mass of a non-tobacco flavor additive to the solution prior to placing the volume of the solution into a cartridge within the electronic cigarette adjacent the wicking material.
19. The method of claim 14 , wherein the solution has an absorbance of between 0.4 AU and 0.6 AU when exposed to a 500 nm wavelength light.