It’s no coincidence that doctors ask their patients to stick out their tongues when examining them. According to Ayurveda, the ancient practice of natural healing, tongue analysis can tell a lot about organ health. Surprisingly enough, using a tongue scraper may be one of the most underrated oral hygiene rituals around. The fact is, brushing twice a day and flossing on occasion aren’t enough to rid your mouth of icky toxins.

According to Vasant Lad, an Ayurvedic physician: “One of the best ways to keep the tongue healthy is by scraping it daily. This removes overnight build-up of bacteria and toxins on the tongue. Rather than brushing the tongue, which will only push bacteria and toxins into the tongue, this is done with a tongue scraper or spoon.” With that in mind, here are 10 reasons why you should invest in a tongue scraper today.

1. Stainless Steel
Other than being gentler on the tongue than plastic, a stainless steel tongue scraper is more resistant to bacteria. Forgot your scraper at home? The side of a metal spoon works, too.

Read Related: 10 Health Facts You Need to Know About Your Tongue