You cannot sober up on demand
Written by The Kalcule Team · Last updated 18 august 2026
Coffee, cold showers, fresh air and vomiting do not meaningfully speed alcohol elimination. Time does. Plan transport before you drink.
Elimination rate
Average clearance is often cited around 0.015% BAC per hour and varies. The BAC calculator uses a simple rate. Your liver did not read the blog that promised a shortcut.
What myths persist
Caffeine makes a tired drunk person an alert drunk person. Exercise does not sweat ethanol out in useful amounts. Bread after the fact does not rewind absorption.
Hangovers
Hydration, sleep and time. Hangover products are mostly marketing. If you cannot keep fluids down or have concerning symptoms, seek care.
The only reliable plan
Do not drive. Use the BAC page as a teaching estimate, then ignore anyone selling a sober-up hack.
Întrebări frecvente
Myths about sobering up.
It helps hydration, not the ethanol already in blood.
Only alcohol still in the stomach. It is not a strategy and can be dangerous.
Time passes during a nap. The nap is not the mechanism.
Devices vary. Residual alcohol and calibration errors exist. When in doubt, do not drive.
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