Can they dectect the alcohol in mouthwash?

Mouthwash typically contains a small amount of alcohol, usually between 18% and 26%, which is not enough to be detected by a breathalyzer. However, if you drink mouthwash immediately before taking a breathalyzer test, there is a chance that the alcohol in the mouthwash could be detected. This is because the alcohol in mouthwash can evaporate and be absorbed into the bloodstream through the mucosa of the mouth. If you are concerned about the possibility of mouthwash affecting a breathalyzer test, it is best to avoid using mouthwash for at least 30 minutes before taking the test.