Tag: Mouth alcohol

While breathalyzers are a common tool for estimating blood alcohol concentration (BAC), numerous factors can lead to inaccurate results [1.6.2]. Understanding what throws off a breathalyzer is crucial, as issues from medical conditions to device calibration can create false positives [1.2.1, 1.2.4].

According to numerous law enforcement agencies and legal experts, there is no proven method or substance that can effectively cancel out a breathalyzer reading after alcohol consumption. Attempts to do so often fail and can lead to more serious legal trouble. However, certain medications and health conditions can create inaccurate results, which is a different issue entirely.

While highly unlikely to lead to a lasting positive result, some oral hygiene products can indeed cause a temporary false reading. A 2016 news report demonstrated how brushing with a sorbitol-containing Crest toothpaste could cause a brief, false positive on a portable breath-testing device, confirming that it's possible for **toothpaste to cause a positive alcohol test**.