Does anyone know how to do this in 24 hours

The amount of EtG in system is related to the amount of alcohol consumed and elimination time is dependent on amount of EtG present.

Maybe only drinking one beer

What about a liter jyeger and like 5 beers and I puked if that helps

The shortest period for EtG detection following heavy drinking is 39 hours. That is very unusual and a more reasonable estimate would range from 60 - 90 hours (ave. 65 (http://alcalc.oxfordjournals.org/content/42/4/321.full)).

Re: Beck, 2007