Can Energy Drinks Test Positive For Alcohol?
We found no official source showing that energy drinks make a breath test read positive. A peer-reviewed paper says alcohol left in the mouth from a recent drink can raise a result, and lists food and drinks among possible mouth contaminants, so testers observe you for 15 minutes first.
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What we could confirm
A 2025 paper in Forensic Science International: Synergy reviews limits of breath alcohol testing. It says residual alcohol from a recent drink can stay in the mouth for up to about 15 minutes and falsely raise a result. For that reason a careful, continuous 15-minute observation period is needed before a test.
Food and drinks as contaminants
The paper lists food and drinks along with hand sanitizer, mouthwash, inhalers, tobacco and E85 gasoline as possible sources of mouth alcohol. It does not report results for energy drinks or soft drinks, so we cannot say they cause a positive.
What we could not confirm
We found no government page, test study or label saying a common energy drink produces a positive reading. Some products may contain trace alcohol from flavoring, and we found no official data on how much.
If you are tested
- Do not put anything in your mouth for 15 minutes before a breath test.
- Ask for the observation period to be followed and for a second test.
For a legal case, ask a lawyer. This is general information.
People also ask
Can an energy drink cause a false positive on a breathalyzer?
We found no official source that says so. A journal paper says mouth alcohol from a recent drink can raise a result, which is why a 15-minute wait is used.
How long should you wait before a breath test?
The 2025 paper says a careful, continuous 15-minute observation period is needed.
What else can cause mouth alcohol?
The paper lists hand sanitizer, mouthwash, inhalers, tobacco, E85 gasoline, food and drinks.
Sources
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