There is no way to sober up fast. Your liver processes alcohol at a fixed rate of about one standard drink per hour, and nothing you do will speed that up. A standard drink is 12 ounces of beer, 5 ounces of wine, or 1.25 ounces of 80-proof liquor, each containing roughly half an ounce of pure alcohol. If you’ve had five drinks, you’re looking at roughly five hours before your body clears the alcohol, regardless of what tricks you try in the meantime.
That said, there are things you can do to feel better, stay safer, and avoid making a bad situation worse while you wait.
Why Your Liver Sets the Timeline
Alcohol is broken down almost entirely by your liver, and the liver works at a constant pace. It doesn’t speed up because you’re anxious, active, or drinking water. Think of it like a single-lane road: no matter how much traffic backs up, cars can only pass through one at a time. When your blood alcohol concentration is high, the excess simply circulates through your body until the liver catches up.
For context, the legal driving limit in most U.S. states is 0.08 g/dL (0.05 in Utah). If you’ve been drinking enough to feel noticeably drunk, you’re likely well above that number, and it could take several hours after your last drink to drop back to zero. There’s no shortcut through this process.
Coffee, Cold Showers, and Other Myths
Coffee is probably the most common “remedy” people reach for, and it does not work. Caffeine makes you feel more alert, but it does not reduce the effects of alcohol on your body. The CDC is clear on this point: mixing caffeine with alcohol can actually make things more dangerous, because you feel less impaired than you really are. You’re just as drunk, just more awake about it. That false confidence is what leads people to drive or make decisions they wouldn’t otherwise make.
Cold showers fall into the same category. A blast of cold water will jolt you awake and might clear your head for a moment, but it has zero effect on your blood alcohol level. The Hazelden Betty Ford Foundation puts it simply: a cold shower may make sobering up a cleaner experience, but it doesn’t change the rate at which your body eliminates alcohol. There’s also a real safety concern here. Intoxicated people have impaired coordination and reaction time, and stepping into a slippery shower while drunk increases the risk of a fall.
Exercise doesn’t work either. While physical activity increases your heart rate and breathing, your liver still processes alcohol at the same fixed pace. You might sweat and feel like you’re “burning it off,” but the alcohol in your bloodstream isn’t leaving through your sweat glands in any meaningful amount.
What Actually Helps While You Wait
Since you can’t speed up the clock, the goal shifts to managing symptoms and staying safe.
- Stop drinking. This sounds obvious, but every additional drink resets the timeline. Your liver is already working at full capacity. Each new drink just adds to the queue.
- Drink water. Hydration won’t lower your blood alcohol level or prevent a hangover. Research from Utrecht University found that water consumption during or after drinking had only a modest effect on next-day hangover symptoms, and that dehydration and hangover appear to be two separate consequences of drinking rather than one causing the other. Still, alcohol is a diuretic, so replacing fluids will help with dry mouth, headache, and general discomfort.
- Eat something. Food won’t sober you up after the alcohol is already in your bloodstream, but if you’re still in the early stages of a drinking session, eating can slow absorption significantly. Studies show that drinking on a full stomach reduces peak blood alcohol levels by roughly 30% compared to drinking on an empty stomach. For women, a meal reduced the amount of alcohol available for absorption to about 66% of what it would be while fasting; for men, about 71%. So eating a real meal before or during drinking makes a measurable difference in how drunk you get, even if it can’t undo what’s already happened.
- Rest. Sleep doesn’t accelerate metabolism, but it lets time pass while keeping you safe. Your liver keeps working while you sleep. If you’re going to lie down, stay on your side rather than your back in case of vomiting.
How Long It Actually Takes
A rough guide: count the number of standard drinks you’ve had, then assume about one hour per drink from the time you stopped. If you had four beers over two hours and stopped at midnight, your body needs approximately four more hours to clear the alcohol. You likely wouldn’t be at a BAC of zero until around 4 a.m.
This is an estimate, not a guarantee. Body weight, biological sex, liver health, medications, and how quickly you drank all influence the timeline. Women generally reach higher blood alcohol levels than men from the same amount of alcohol, partly because of differences in body water content and enzyme activity. People with liver damage process alcohol more slowly. But the one-drink-per-hour rule is a reasonable baseline for most adults.
One important thing to keep in mind: you can still be over the legal limit the morning after a night of heavy drinking. If you had eight drinks and stopped at 1 a.m., your body may not finish processing all that alcohol until 9 a.m. or later. Feeling “fine” the next morning doesn’t mean your BAC is at zero.
The Only Real Strategy
If you need to be sober by a certain time, the only reliable approach is to plan backward. Figure out when you need to be clearheaded, count the drinks you can have, and stop early enough for your body to do its work. No supplement, no home remedy, and no amount of coffee changes the math. Time is the only thing that sobers you up.
In the short term, if you’re drunk right now and searching for a quick fix, the honest answer is: there isn’t one. Drink some water, eat if you can, find a safe place to wait it out, and don’t drive. Your liver is already working as fast as it can.