Fact: The liver usually metabolizes one standard serving — a glass of wine or a bottle of beer — in an hour. And alcohol and its metabolites can remain in the body for different lengths of time, depending on the type of test. Breath and blood tests usually detect alcohol for up to 12–24 hours, standard urine tests for up to 12–48 hours, and more sensitive ones (like EtG/EtS) for up to 80 hours. Hair can retain traces for up to 90 days! Moreover, the quality of products and the amount of alcohol consumed have an effect, and water, coffee, or a cold shower cannot speed up metabolism.