If you drink alcohol quickly, your blood alcohol concentration (BAC) will rise faster and reach a higher peak than if you drink the same amount slowly over a longer time.

What happens to BAC if you drink quickly?

  • Drinking more than about one standard drink per hour usually makes your BAC climb, because your liver can only process roughly one drink per hour.
  • When you drink several drinks in a short period, alcohol is absorbed from your stomach and intestines faster than your body can break it down, so your BAC spikes sharply.
  • Even after you stop drinking, your BAC can keep rising for a while as alcohol already in your stomach and gut continues to enter your bloodstream.

Why speed matters, even with the same amount

  • Two people who drink the same total amount can have very different BACs depending on how fast they drink; faster drinking means a higher and earlier peak BAC, plus stronger impairment.
  • Rapid drinking greatly increases the risk of dangerous levels (for example, around 0.15 and above), which are linked to severe impairment, vomiting, difficulty walking, and in extreme cases breathing problems or loss of consciousness.
  • Food in your stomach can slow alcohol absorption, while carbonation (like soda or seltzer in mixed drinks) can speed it up, making fast drinking with fizzy drinks especially risky.

Key safety takeaway

  • The only reliable way for BAC to go down is time ; coffee, cold showers, or vomiting do not lower BAC.
  • To reduce risk, spread drinks out, eat before and while drinking, and avoid any driving if you have consumed alcohol at all.

Information gathered from public forums or data available on the internet and portrayed here.