When alcohol vapor is inhaled, it goes straight from the lungs to the brain and bloodstream, getting the individual drunk very quickly. Because the alcohol bypasses the stomach and liver, it isn’t metabolized, and the alcohol doesn’t lose any of its potency.
Drinkers feel the effects almost instantly, but the risks are also much higher. People who smoke their alcohol are at a much greater risk of getting alcohol poisoning and potentially overdosing. When people drink too much alcohol, they tend to vomit. Getting sick is one of the ways that prevents an alcohol overdose, but when alcohol circumvents the stomach and liver, the body can’t expel it.
It’s also much harder to know just how much alcohol you’re consuming in one sitting if you’re not stringently measuring. If a cup of alcohol is poured into a bottle and then vaporized, the drinker cannot tell if they are inhaling a few sips or the whole cup, since the liquid remains in the bottle.
“It’s also terrible for your lungs and nasal passages,” says Carise. “Your lungs are not meant to inhale something that can turn back into a liquid. When you think of liquid in the lungs, you think of drowning.”
(MORE: Safety Board Recommends Defining Legally Drunk With Lower Blood-Alcohol Level)