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Alcoholic Beverages
Drug Tests

How long does alcohol stay in the urine?


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March 10, 2017 2:13PM

I know for a fact that it only stays in your system for about one hour per 12 oz. of beer, 1 oz. of liquor, and 8 oz. of wine. Study shows that it only stays in your system for 24-48 hours.

Improved answer: I have been researching this for a bit now (I just tested positive for alcohol in a urine test) and while the one hour rule is good to use for say a breathalyzer or for a limit while driving, unfortunately this is not the case when you are about to take a urine test. Apparently they are able to find out if any alcohol had been consumed up to 5 days prior to the test!! so If you are unlucky like myself and get a test once a week you better just stay dry!!! :(

After entering the body, alcohol passes through the stomach and intestines, and then into the blood. This process is called absorption.

Once in the liver, an enzyme called alcohol dehydrogenase (ADH) is responsible for changing alcohol to acetaldehyde, which is then converted to acetate. Eventually acetate is metabolized to carbon dioxide and water. The majority of alcohol a person consumes is metabolized in the liver, but what remains allows alcohol to be measured in blood, urine and breath tests. So

how long alcohol stays in your system depends on time needed to metabolize alcohol is dependent on the blood alcohol content of the person drinking.