A 5 gal fermentor of Mosaic IPA 1.070 OG been fermenting since September 7. I pulled the airlock, coincidently the same size as my one way breath sample mouth piece (hmmmm, an idea)
Anyway, I placed it on the pbt and inhaled air through it from the fermentor. Gag!!! Cough!!!
Reading was .390
There's no way in hell he blew that high without drinking unless he had a belly full of high test and belched into the pbt.
Its a bs story
that's the point, he had a belly full of hightest. the air coming out of his belly was very high in volatile alcohols. many of which likely blow out of the fermenter during fermentation. but because he WAS the fermenter they were blowing out of him.
if you stop someone and ask them if they have had a drink in the last x minutes aren't you asking because while there is a significant amount of alcohol in the mouth and stomach the reading will be way way high? same thing here.
Go and chug a beer and immediately test yourself. I bet you'll blow pretty high. don't drink water in between or anything, drink and blow.