STEP 1
Scrape tongue spoon
用小勺轻刮舌头

Take a small spoon and gently and carefully scrape the very back of your tongue.

If you don't have a spoon, lick the bare part of your wrist, let the saliva dry a few seconds, and sniff.

STEP 2
Sniff spoon
嗅嗅勺子

Sniff the material that comes off on the spoon. If the odors makes you recoil in horror, it's time to invest in some serious dental care.

Saliva cleans the mouth and carries away malodorous food particles, so a dry mouth can cause bad breath.