Uncorking the Truth: Ethanol is Ethanol
Contrary to popular belief, mixing different types of wine—or any alcoholic beverages—does not make you more drunk. The intoxicating agent in all alcoholic drinks is ethanol. Regardless of whether it comes from a light white wine, a full-bodied red, or a distilled spirit, your body processes the chemical compound ethanol the same way. The level of intoxication you experience is purely a function of your blood alcohol concentration (BAC), which is determined by the total amount of ethanol you consume over a given period, not the variety of drinks you have. The liver can only metabolize approximately one standard drink per hour. When you drink faster than your liver can process the alcohol, your BAC rises, and you feel more intoxicated.
Why the Myth About Mixing Wines Persists
If the science is clear, why do so many people swear by the 'mixing makes you drunker' narrative? The answer lies in a combination of misperception, differing alcohol concentrations, and psychological factors.
- Difficulty tracking intake: Sticking to one type of drink makes it easier to track how many 'standard drinks' you've consumed. When you switch from a 12% ABV Sauvignon Blanc to a 15% Zinfandel, or worse, to spirits, it is easy to lose count and consume more ethanol than intended. This unintentional overconsumption is the real culprit behind heightened intoxication.
- Drinking different alcohol percentages (ABV): Most people start a night with lower-alcohol options before moving to higher-ABV drinks. A typical evening might begin with a glass of wine before moving to a cocktail with a much higher alcohol concentration. This rapid increase in ethanol intake over a short period will spike your BAC quickly, creating the perception that the mixing caused the effect.
- Psychological effects and expectancy: Our mindset and expectations play a significant role in how we perceive intoxication. If you believe that mixing drinks will make you more drunk or sick, you are more likely to interpret your body's signals in that way. This is a psychological placebo effect rather than a physiological reality.
Factors That Actually Affect Intoxication
Rather than focusing on the combination of drinks, it is more beneficial to understand the factors that genuinely influence how intoxicated you become.
- Rate of Consumption: The faster you drink, the quicker your BAC rises. Gulping down glasses of wine will make you more intoxicated than sipping slowly, regardless of whether they are the same type or different.
- Food in Your Stomach: Drinking on an empty stomach allows alcohol to be absorbed into your bloodstream much faster. Having a meal, particularly one high in protein and fat, slows this absorption, keeping your BAC lower for longer.
- Body Weight and Composition: Heavier individuals generally have a larger body fluid volume, which dilutes the alcohol more effectively and results in a lower BAC than smaller individuals who consume the same amount.
- Gender: Women typically have a higher body fat percentage and produce less of the enzyme alcohol dehydrogenase (ADH) in the stomach, which breaks down alcohol. This leads to higher BAC levels in women compared to men of the same weight consuming the same amount of alcohol.
- Congeners: These are chemical byproducts of fermentation that can affect the taste, aroma, and color of alcoholic beverages. Darker drinks like red wine tend to have higher congener content than clear beverages. While congeners do not make you more drunk, they can contribute to more severe hangovers, with symptoms like nausea and headaches, which can be mistaken for being 'more drunk'.
The Role of Carbonation
Some types of wine, specifically sparkling wines like Champagne, contain carbon dioxide. This carbonation can increase the rate of alcohol absorption, causing intoxication to occur more quickly. This effect is independent of mixing but can contribute to the belief that changing drinks leads to more rapid drunkenness.
Comparing Mixing Myths vs. Reality
| Aspect | Common Myth | Scientific Reality |
|---|---|---|
| Intoxication Level | Mixing different wines gets you drunker. | Intoxication is determined by the total volume and rate of ethanol consumption. |
| Cause of Sickness | The combination of different drinks causes nausea. | Overconsumption, congeners, or drinking on an empty stomach cause sickness. |
| Pacing | You can't track your intake when mixing. | Losing track is a risk, but responsible pacing can be managed regardless. |
| Drink Order | The order of drinks matters for intoxication. | The order has no effect on BAC, though starting with low-ABV drinks can lead to overcompensation with high-ABV ones later. |
| Effect on Body | Different wines create different 'types' of drunk. | All ethanol has the same effect, though congeners or psychological factors may influence perception. |
Staying in Control When You Mix Wines
To enjoy a wine tasting or a meal with different wine pairings without overdoing it, follow these practical tips:
- Plan your intake: Before you start, decide on a reasonable limit for the total number of standard drinks you will consume for the evening.
- Use the 'spacer' method: Alternate each glass of wine with a full glass of water. This helps keep you hydrated and slows down your overall alcohol consumption.
- Eat first: Never drink on an empty stomach. Enjoy a substantial meal, especially one with protein, to slow alcohol absorption.
- Take advantage of spittoons: At a wine tasting, it is common and acceptable to spit out the wine after tasting it. This allows you to appreciate the flavors without increasing your intoxication.
- Be aware of ABV: Pay attention to the alcohol by volume of each wine you are drinking. Higher ABV wines should be consumed more slowly and in smaller quantities.
Conclusion
The idea that mixing wines makes you more drunk is a pervasive and enduring myth. The reality is that the intoxicating effect comes from ethanol, and its impact is governed by the total amount consumed over time, not the specific combination of beverages. The feeling of heightened intoxication often associated with mixing drinks is a result of unintentionally consuming more alcohol, drinking faster, or being influenced by psychological factors. By focusing on the true drivers of intoxication—volume, speed, body factors, and food intake—you can practice mindful and responsible consumption, whether you're enjoying a single varietal or exploring a diverse selection.