How much alcohol to drive?: Models, tests, reviews and videos 4

In France, alcohol is one of the main causes of road deaths. These accidents can however be avoided if each driver respected the authorized limit in terms of blood alcohol level. So, from how much glass is driving prohibited? Point.

To better understand the subject, it is above all necessary to know what the blood alcohol level is. In reality, it is the level of alcohol in the blood. This rate is measured in grams per liter of blood and is obtained with a blood test. It can also be measured by milligram per liter of exhaled air, using a breathalyzer or breathalyzer.

It is to know that with each drink consumed, the level of alcohol in the blood increases from 0.20 to 0.25 g on average. In addition, various factors can accelerate its increase, in particular the state of health, the degree of stress or fatigue of the consumer. Smoking as well as the physical characteristics of the latter can also influence the level of alcohol in the blood.

In addition, the higher the blood alcohol level, the greater the risk of a traffic accident. For this reason, almost 30% of fatal accidents are linked to consuming too much alcohol. Respecting the alcohol level tolerated by the Highway Code is therefore essential.

What is the authorized quantity of alcohol?

In terms of drinking and driving, it should be noted that the regulations set the maximum alcohol level at 0.5 g / l and to 0.2 g / l for young drivers in probationary period. Otherwise, a rate greater than or equal to 0.8 g / l is considered an offense. How many glasses do these rates correspond to?
Before answering this question, you must first know that a glass represents the same amount of alcohol, whether it is a glass of whiskey, wine or beer. Indeed, in restaurants for example, each type of alcohol is served in a suitable container in order to properly dose its quantity. Thus, a glass contains 10% pure alcohol, or a blood alcohol level of approximately 0.20 to 0.30 g / l. Of course, if it is served at home in unsuitable containers, the dosage is not the same. Thus, in order not to exceed the authorized limit, a man must not not drink more than 2 glasses of alcohol while the woman should limit herself to 1.5 glasses. It should be noted that a rate of 0.8 g / l corresponds to 3 glasses of alcohol.


Any driver who has exceeded the authorized blood alcohol limit is liable to penalties in the event of a control. For first-degree offenses, with a slight excess, between 0.22 mg to 0.34 mg, the penalties provided for are:

• A fine of 179 euros, with a driving ban for 3 hours;
• A time in court;
• An obligation to retake the theoretical and / or practical exam for a probationary permit;

For 2nd degree offenses, between 0.35 mg and 0.64 mg, the penalties are:

• A fine of 420 euros, with a driving ban for 6 hours;
• A time in court.

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