You can’t get undrunk fast. Your liver breaks down alcohol at a fixed rate of roughly one standard drink per hour, and nothing you do will speed that up. No food, no coffee, no cold shower, no exercise. The only thing that actually removes alcohol from your system is time. That said, there are things worth knowing about how long you’re really looking at, what actually helps you feel better in the meantime, and when a situation crosses from uncomfortable to dangerous.
Why Nothing Speeds Up Sobriety
Your liver uses a specific enzyme to break down alcohol, and it works at a nearly constant pace regardless of what you do. About 95% of the alcohol you drink has to pass through this process. The remaining 5% leaves through your breath, sweat, and urine, which is a tiny fraction that no amount of sweating or deep breathing will meaningfully increase.
The California Department of Alcoholic Beverage Control puts it plainly: a cold shower, fresh air, exercise, or black coffee will not help sober a person up. If there is excessive alcohol in the blood, the liver cannot speed up detoxification. Your body treats alcohol like a slow conveyor belt. You can’t make the belt move faster. You can only wait for everything on it to reach the other end.
Coffee, Food, and Cold Showers: What They Actually Do
Caffeine does not reduce alcohol’s effects on your body. The CDC is clear on this: mixing caffeine with alcohol might make you feel more alert or make you think the alcohol is affecting you less, but your blood alcohol concentration stays exactly the same. This is actually more dangerous than doing nothing, because feeling alert while still impaired can lead you to drive, make decisions, or keep drinking when you otherwise wouldn’t.
Eating after you’ve already been drinking won’t lower your blood alcohol level either. Food slows down how quickly alcohol enters your bloodstream in the first place, which is why eating before or during drinking makes a real difference. But once the alcohol is already circulating, a heavy meal won’t pull it back out. You might feel better with something in your stomach, but your BAC stays the same.
Cold showers fall into the same category. The shock of cold water can make you feel more awake for a few minutes, but your coordination, reaction time, and judgment remain impaired. Feeling sober and being sober are two very different things.
How Long It Actually Takes
The timeline depends on how much you drank, your sex, and your body weight. Data from the University of Arizona Campus Health breaks it down:
For men, one drink takes 1 to 2 hours to fully clear. Three drinks take roughly 2.5 to 3.5 hours. Five drinks take 3 to 5 hours. Heavier individuals process alcohol slightly faster because of greater blood volume and, typically, more liver mass.
For women, the timeline is longer across the board. One drink takes 1.5 to 3 hours. Three drinks take 3.5 to 6.5 hours. Five drinks can take anywhere from 5.5 to over 10 hours to fully leave the system. Women generally have less of the enzyme that breaks down alcohol and a higher proportion of body fat relative to water, which means alcohol stays more concentrated in the bloodstream.
These ranges assume standard drinks: one 12-ounce beer, one 5-ounce glass of wine, or one 1.5-ounce shot of liquor. Cocktails and craft beers often contain significantly more alcohol than a single standard drink, so your actual clearance time may be longer than you’d guess.
What You Can Do While You Wait
You can’t sober up faster, but you can manage how you feel. Alcohol is a diuretic, meaning it causes your body to lose more fluid than you’re taking in. Drinking water between alcoholic drinks or after you stop won’t speed up alcohol metabolism, but it can reduce headache, dry mouth, and dizziness. Research published in ScienceDirect found that water consumption had only a modest effect on preventing hangover symptoms and didn’t meaningfully reduce hangover severity the next day, but staying hydrated still helps with basic comfort in the moment.
Eating a simple meal with carbohydrates and some fat can settle nausea and give your body fuel. Resting in a safe, comfortable position lets your liver do its work without you doing anything that impairment makes risky. If you feel like you need to “walk it off,” that impulse is worth questioning. Walking while impaired increases your risk of falls and injuries, and it won’t clear alcohol from your blood any faster.
When Drunk Becomes Dangerous
Most intoxication is unpleasant but not life-threatening. Alcohol poisoning is different, and the line between the two can be hard to see from the inside. The National Institute on Alcohol Abuse and Alcoholism identifies these critical warning signs:
- Slow breathing: fewer than 8 breaths per minute
- Irregular breathing: gaps of 10 seconds or more between breaths
- Slow heart rate
- Vomiting while unconscious or semi-conscious
- Skin that looks blue-tinged or pale
- Inability to be woken up
If someone shows any of these signs, that’s a medical emergency. Alcohol poisoning can cause brain damage, choking, or death. Don’t assume a person will “sleep it off.” Place them on their side to prevent choking if they vomit, and call emergency services. A person’s BAC can continue rising even after they stop drinking, because alcohol in the stomach and intestines is still being absorbed.
Planning Around the Timeline
The most useful thing you can do with this information is plan backward. If you need to drive, work, or handle anything that requires sharp judgment, count your drinks and add up the hours. Five drinks at a party that ends at midnight could mean you’re not at zero BAC until 5 a.m. or later, depending on your body. For women at lower body weights, five drinks could mean impairment lasting well into the next morning.
If you’re searching this because you’re drunk right now and need to be sober soon, the honest answer is that you’re stuck waiting. Water, rest, and a safe place to stay are your best tools. Everything else is a myth that can make a bad situation worse by convincing you that you’re more capable than you actually are.