Good oral hygiene is essential for fresh breath. The bacteria in your mouth thrive on the food particles left behind after eating. These bacteria produce sulphur compounds that give the mouth a bad odour. Rinsing with mouthwash can help reduce the number of these bacteria. Flossing is also important because it removes food particles between the teeth where the bacteria can hide. By reducing the amount of food available for the bacteria, you can also reduce bad breath. Practising good oral hygiene habits such as brushing, flossing, and rinsing with mouthwash is the most recommended way to keep bad breath at bay.