Will I pass a peth test 19 days after drinking 6 beers? No alcohol for 19 days now

21 days is how far back a peth test can go. There is usually a cut off level to account for incidental exposure to alcohol generally accepted as non drinking related. Many common everyday products such a hand sanitizer, or mouthwash account for these products, hence a cut off for incidental exposure level.

So are you a heavy drinker, or a binge drinker, and do you know if there is a cut off for incidental exposure, or are you under court ordered zero tolerance? If you are then you have signed a document acknowledging that fact.