A blood test is the only way to measure blood alcohol concentration accurately. Alcohol breath testers (Breathylizer, etc.) actually only estimate the blood alcohol concentration.
Blood alcohol concentration is a more reliable indicator of intoxication because individuals have different tolerance levels.
It is to do with the fermentation process, the concentration of alcohol is differed and hightened based on the amount of water in the wine, and expense.
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BAC - Blood Alcohol Concentration
Several factors can influence a person's blood alcohol concentration (BAC), including the amount and rate of alcohol consumption, body weight, gender, fat percentage, metabolism, food consumption, and overall health. Other variables such as the type of alcohol consumed, medications, and tolerance levels can also impact BAC levels.
Someone's blood alcohol concentration can be influenced by body size, gender, fat versus muscle content, and food in the stomach. In addition, liver function may affect blood alcohol concentration.
Drinking Alcohol could do it...
It increases blood alcohol concentration (BAC).
Blood Alcohol Level ---- Doctors answer: The serum concentration
IT stands for Blood Alcohol concentration and the meaning of this word is to see how much alcohol is in your blood.
Take the sugar level at time of harvest and times it by .55 to get the alcohol level. 24 brix of sugar equals 13.2%. So the higher the sugar the higher the alcohol. This is why some Zinfandel will have a higher alcohol level do to the fact that they can easily reach 29-31 brix.