How many hours does it take for a can of beer to not be detected in a drunk driving test?
2 Answers
24 hours. The following is relevant information about drunk driving: 1. Alcohol dissipation time: Alcohol generally takes 10-20 hours to dissipate in the human body. Digestion does not mean there is no alcohol left in the blood. Therefore, it usually takes 24 hours after drinking before alcohol cannot be detected in a drunk driving test. 2. Alcohol metabolism: The speed of alcohol metabolism depends on many factors such as a person's physical condition and individual constitution. There is no fixed time for how long it takes for alcohol to completely evaporate after drinking. Scientific experiments show that an average person can metabolize 15 ml of alcohol per hour, which is roughly equivalent to the alcohol content in a can of beer, i.e., 355 ml of beer.
I've just checked some information. After drinking a can of beer, the alcohol takes time to metabolize in the body, and this varies from person to person. A can of beer contains about 14 grams of alcohol, which can raise the blood alcohol concentration to between 0.02% and 0.05%. The metabolism rate differs among individuals, averaging 0.015% per hour. If the initial concentration is 0.04%, it takes 1-3 hours to drop below the detectable level (under the 0.02% standard). There are many influencing factors: lighter individuals metabolize slower, men metabolize faster than women, and eating food slows it down further. Breathalyzers used for testing are very sensitive and may detect residual alcohol if tested too early. Therefore, the safest option is not to drive after drinking. If you must, wait at least 3 hours. I recommend not taking the risk—take a taxi or hire a designated driver after drinking, it’s worry-free and hassle-free.
