4hw.com.cn: as a member of the company, we should bear in mind a basic rule: don't drink without driving. But many old drivers want to ask, if I drink a bottle of beer, how long will it take to drive without being found out. In theory, how long can you drive after drinking a beer? Let's first understand the absorption and metabolism of alcohol.
Alcohol metabolism kinetics
Here is a classic experiment on alcohol absorption and metabolism.
When a 70 kg person drinks a standard cup of alcoholic beverage in an empty stomach, the blood alcohol concentration (BAC) reaches the peak in about half an hour, and the maximum BAC can reach 20 mg / 100 ml (or 0.02%). It takes 2 hours for alcohol to be completely removed from the body.
Drink 2 cups, the peak concentration time of BAC is about 40 minutes, the maximum BAC is about 0.045%, and it takes 4.5 hours to completely remove..
3 cups, the peak concentration time of BAC is about 1 hour, the maximum BAC is about 0.07%, and it takes 5.5 hours for complete removal.
3 cups, BAC peak concentration time is about 90 minutes, the maximum BAC is about 0.085%, and it takes 7 hours to completely remove.
Blood alcohol concentration half an hour after drinking a beer
There are many types of beer bottles. However, the most classic large bottle has a capacity of 1 pint, i.e. 568.26ml.
The alcohol degree (volume ratio) of beer is 3-3.8% for light beer and 4-5% for strong beer.
Calculated by 4%, a bottle of 568ml beer contains 18,18g pure alcohol.
A standard cup is any alcoholic beverage containing 14 grams of pure alcohol.
Half an hour later, it is the peak time of BAC, the highest BAC can reach 0.026%.
0.026% BAC means legally: drunk driving
All countries in the world are based on BAC for drinking and driving. Although the standards of each country are different, bac0.02%, 0.05% and 0.08% are the most commonly used values.
In China, the illegal behavior of drinking driving is divided into two standards, BAC & Ge; 0.02% is defined as drunk driving, BAC & Ge; 0.08% is defined as drunk driving.
Therefore, half an hour after drinking a bottle of beer, it will be detected as drunk driving by the police.
Performance impact:
The acute effect of alcohol on the body is first manifested in the inhibition of brain function. On the one hand, there are individual differences in the degree of inhibition, on the other hand, it is always proportional to BAC.
It is generally believed that BAC is between 0.00% and 0.05%. For most people, the performance can be normal.
However, some human brain functions have been affected, and start to show excitement and relaxation; the response time slows down, up to twice.
That is to say, for sensitive people, as long as a little alcohol may affect the operation performance and driving skills.
For these people, driving half an hour after drinking a beer will affect driving skills and increase the risk of driving accidents.
Don't drink, don't drive
Therefore, based on the safety considerations of individuals, relatives and friends, as well as others, it is necessary to regard 'drinking without driving, driving without drinking' as the iron law, regardless of the size of the quantity.
After a bottle of beer, how long can I drive?
Of course, you can't drink a beer without driving.
After a bottle of beer, how long can I drive?
In theory, at least two hours.
And it has to be completely insensitive to the effects of alcohol.