How Long Does "One" Beer Stay In Your System?


18 Answers

Ray Hueston Profile
Ray Hueston answered
After you drink alcohol enters your blood stream through the stomach walls and small intestine. The liver then starts to produce an enzyme called alcohol dehydrogenase (ADH) which starts to break down the alcohol. The rate at which the alcohol in your body is broken down depends on a number of factors such as your weight, gender, age, medication, how much you've eaten and obviously how many units you have drunk. Depending on the strength of the beer it can take your body 2-3 hours to completely break down the alcohol in a standard pint of beer, as a healthy adult can usually metabolise a unit of alcohol every hour, taking into account the factors mentioned before. Although it is generally considered that a pint of beer has 2 units in it, this has been shown to vary, while lager generally has a higher alcoholic content with a pint from a pub containing almost 3 units. If you consume a lot of alcohol there is a chance that there will be some left in your blood stream, sometimes enough for you to be over the legal limit which in the UK is 80mg of alcohol for every 100ml of blood. For this reason men can generally drink more than women and therefore women are recommended not to drink more than 2-3 units a day whereas men can drink 3-4 a day before it becomes a medical concern. It is important to consider this as driving or operating machinery can be a lot more dangerous after drinking, as alcohol impairs some brain functions and increases reaction times. Other effects of alcohol include dehydration.
Jacquelyn Mathis Profile
After one hour, the effects start to wear off, but it takes up to 24 hours for it to be out of your system. Hope this helps.
Meta Forrest Profile
Meta Forrest answered
It will be out of your breath around 4 hours, your urine in 6-7 hours and your bloodstream in no more than 10-12 hours . 
Krystal DeLaRosa Profile
1-2 hours. Beer is out of the system at an average rate of 1 beer per hour.
Anonymous Profile
Anonymous answered
It takes from half an hour to and hour to clear one beer out of your system that is why people have hang overs because the Colin can't clear it out all at once
Deborah Wacker Profile
Deborah Wacker answered
Much less than 24 hrs, so you are safe to get done what you need to get done if it has been this long. Knowing you needed to be clean the next day, why would you risk it.
Arthur Wright Profile
Arthur Wright answered
Detectable traces of this one beer can last a couple weeks for a UA test
thanked the writer.
Anonymous commented
Can the ua detect if u been drinking that day? I had2 22 oounces of bud light cop gave me a ua so I gotta go to court & c what the lab says.....I only had beer can they detect that

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