A new study led attention when it found coffee can lead to good breath . The study in Tel Aviv , Israel , was meant to prove coffee leads to bad breath . Mel Rosenberg at work in his 'smell laboratory ' found that coffee can lead to good breath . The lead researcher is now thinking about creating a coffee - based mouthwash .
A new study led attention when it found coffee can lead to good breath . The study in Tel Aviv , Israel , was meant to prove coffee leads to bad breath . The lead researcher is now thinking about creating a coffee - based mouthwash .