How To Calculate The Alcohol Content In Cocktails
Keeping track of how much alcohol you are drinking can be a bit tricky when you are out and about having a good time. Pubs and clubs have measured serves which makes things a bit easier, but what about home made cocktails like the recipes we regularly supply our readers?
A good rule of thumb is that the body absorbs 7-12 ml of alcohol per hour. A standard drink in Australia is considered to be 10 gms or about 12.5mls of alcohol. So, depending on various factors a standard drink per hour should keep you relatively sober. Please be aware though, that the more alcohol you consume the harder it is for your body to absorb. The first drink you have should be absorbed into your body in about an hour, but the second will take longer. It’s all science related and not an exact science at that!
Now, the type of factors which affect alcohol absorption include the following:
- How fast you drink
- The amount of food in your stomach
- Your weight
- Amount of fat or muscle your body consists of
- Other medications and drugs in your body
- Other chemicals in the drink. eg: Jäger Bombs
- Foods consumed
- Your drinking history and tolerance
- Physical health
- Mental health
- Current emotional state
With all these variables it’s impossible to know how the alcohol is reacting within your body. Cocktails can be especially tricky, particularly if they are created without a measure. They also consist of a mixture and some have chemical ingredients like caffeine. Since caffeine is a stimulant and alcohol is a depressant, the two can have different side effects. This is what makes them so potent and care should be taken when consuming them. The caffeine itself doesn’t have an alcohol content, but it can affect the alcohol being consumed.
Having gotten through that, I’ll fill you in on an easy way to work out how much alcohol you’re consuming in your cocktails as well as giving you a couple of easy examples to follow.
First look at the percentage of alcohol on the bottle used to make the cocktail. Most have at least 1 regular spirit which is usually 40% alcohol. Next, you need the serving size of the alcohol only, not the serving size of the entire drink. A full nip is usually 30 ml so multiply this with the alcohol percentage. Remember when you multiply a percentage it is not a whole number so you multiply the serving size by the decimal point (0.4). To work out the standard drink size, divide it by the Australian standard of 12.5 ml. Viola!
Here’s a couple of examples:
- Full nip (30ml) of 40% alcohol bourbon = 30 x 0.40 = 12.00ml alcohol
12.00ml / 12.50ml = 0.96 standard drinks.
- 150ml glass of 11.5% alcohol wine = 180 x 0.115 = 17.25ml alcohol
17.25ml/12.50ml = 1.38 standard drinks
You can use this formula to work out the alcohol content in every drink you consume. The final thing I want to mention which will help you with all this is the oz to ml conversion. You don’t need exact figures so, if you remember 1 oz = 30 ml, you’ll be right!
Now you have all the tools you need to keep track of how much alcohol you are consuming in your cocktails. A final tip is to do calculations before you start drinking for obvious reasons.
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