Will a guest drinking glass of champagne may have higher BAC than similar red wine?

It's not a simple matter of one drink being inherently higher in BAC than another. There are many factors that influence BAC, and the type of alcohol is only one of them. Here's why:

* Alcohol content: Champagne typically has a lower alcohol content than red wine (around 12% ABV for champagne vs. 13-15% for red wine). This means that a glass of champagne will generally contain less pure alcohol than a glass of red wine.

* Serving size: The size of the glass makes a big difference. A standard serving of wine is typically 5 ounces, while a champagne flute can hold more or less.

* Individual factors: Individual factors like body weight, metabolism, and gender all play a significant role in determining BAC. Someone with a higher body weight or a faster metabolism will metabolize alcohol more quickly, leading to a lower BAC.

Therefore, it is possible for someone to have a higher BAC from a glass of champagne than from a glass of red wine under certain circumstances. For example, if someone drinks a large glass of champagne (more than 5 ounces) with a higher alcohol content, they could potentially have a higher BAC than someone who drinks a standard 5-ounce glass of red wine.

It's important to remember that:

* Drinking responsibly is crucial. Always be mindful of your limits and drink responsibly.

* Every individual is different. It's impossible to say definitively whether one drink will result in a higher BAC than another without considering all the factors involved.

If you're unsure about your alcohol consumption, it's always best to err on the side of caution and drink less.