We've come a long way with dry herb vaping since Herodotus 500 BC accounts which describe the throwing of hemp seeds on red hot stones. The hookah, used in Northern India was a simple coconut shell concept that became more decorative and ornate when embraced by Turkish intellectuals over a thousand years ago. In the US the Tilt became popular in the 1970s because the vaporizer produced 79% less tar than using tobacco in a normal fashion. In the 90s, Bill Amato created a glass vaporizer called the 'Shake and Vape'. His creation used a glass stem and a glass bowl that allowed the dry ingredient to be heated without burning.
Vaporizers use lower temperatures to heat dry herbal ingredients and release a vapor rather than smoke which is more irritating to the throat, eyes and skin as well as more relatively odorless. Conduction is to transfer the heat through solid materials. Convection is to transfer the heat through a liquid or gas. Both method are used in vaporizers.
The first mass produced vaporizer was the Volcano by Storz and Bickel, a desktop convection vaporizer with a balloon bag system used for intake. A variety of different styles of tabletop vaporizers resulted, one resembling a pencil sharpener. The BC (British Colombian) Vaporizer was used during the 90s which has a glass dome and a metal plate that heated the materials. Manufacturers continued to refine and enhance products and models until the desk top vaporizer market took off. Manufacturers next conceptualized the portable vaporizer that fit in the pocket for use on the go.
Earlier models of portable vaporizer require a lighter to provide the heat need for vaporization. The Vapir Classic introduced new features including a digital temperature control that reduced the chances that the ingredient would burn rather than vaporize and provided battery power, eliminating the need for a lighter. Because it was too large for portability and very expensive, it never took off commercially. The Volatizer VM3 was released in 2006, a pocket sized vaporizer that had digital temperature control and was easy to store but had a very short battery life and a very high price tag. The vaping technology has evolved and improved due to manufactures determination to provide the customer with a product that could safely satisfy their vaping needs. Some components that remained the same are the metal that heat the products being vaped. The metal plate became heated coils. The heat source was no longer external but battery powered. Ceramic bowls are replaced by light weight glass to keep the product separate from the heating source. Technology improvements also include temperature controls, readable LED displays and more powerful batteries.
Vaping technology has evolved greatly since the days of throwing seeds and herbs on hot stone and vaping pens are the epitome of small portable devices that don't require an outside heat source and allow the extraction of active ingredients from dry herbs by transforming them into vapor to be inhaled. Manufacturers have improved upon the various desktop and portable vaporizers offered, walking a fine-line because of controlled and illegal vapor ingredients that're available.
Today's vaporizers come in all shapes, sizes, colors, as well as different wattage and voltage settings.