A new study surprised us when it found coffee can lead to good breath . `` That will take a long time '' said Rosenberg . The study in Tel Aviv , Israel , was able to show coffee leads to bad breath . The lead researcher is now thinking about creating a coffee - based mouthwash .
A new study surprised us when it found coffee can lead to good breath . The study in Tel Aviv , Israel , was able to show coffee leads to bad breath . The lead researcher is now thinking about creating a coffee - based mouthwash .