Michael A. Gottlieb, P.A.
Using Collaboration And Experience To Protect Your Freedom And Reputation

3 common misconceptions about BAC tests

On Behalf of | Oct 13, 2026 | Drunk Driving

Like other states, Florida has BAC limits for drivers. A driver could face criminal charges, jail time and fines if their BAC exceeds the legal limit of 0.08%. A driver who exceeds the BAC limit of 0.15% could face even harsher criminal punishments.

Since most drivers understand the risks of drinking and driving, there are lot of “tall tales” out there about how to get around the law. Unfortunately, too many drivers rely on popular fictions to their detriment. Here are three myths that — if you believe them — can get you arrested.

Myth #1: Mouthwash can hide the alcohol

A breathalyzer is a BAC test that determines a driver’s BAC from the air in their lungs. A driver may try to use mouthwash to hide the smell of alcohol on their breath before taking a breathalyzer, thinking that will help. However, a breathalyzer does not test for the smell of alcohol. Using mouthwash to hide the smell of alcohol can even create a higher BAC score, because some mouthwashes contain alcohol as an active ingredient.

Myth #2: Coffee can get you sober faster

Many people believe that coffee can sober them up faster than normal. However, coffee cannot reduce a person’s BAC. Only time will eventually change the blood-to-alcohol ratio in someone’s system. Coffee can help a driver feel more alert, but that may simply help them deceive themselves into believing they are not impaired.

Myth #3: You can trick a breathalyzer with a penny

There’s long been a persistent myth that sucking on a penny when you take a breath test can “fool” the breathalyzer — but that’s absolutely untrue. The metal in the coin does not actually interfere with the breath test. Plus, it’s unlikely that anybody could put a penny in their mouth and keep it there while taking the test without the officer observing.

You do not have to let a criminal charge destroy your life. Professional legal guidance can help you build a defense against drunk driving charges.