You can test how your breath smells by scraping the back of your tongue with a spoon and sniffing it.
Want to see how your breath smells? Try this: Use a spoon and scrape the back of your tongue. Let it dry, then smell it. That's how your breath smells.
Have bad breath? Brush your tongue. That's where 90% of bad breath bacteria reside. Your tongue microscopically is like a shaggy carpet. There are millions of filaments on your tongue that trap tiny food particles and bacteria.
Dry mouth is another cause of bad breath. You stop producing as much saliva overnight, and that's what causes morning breath. So chew gum and drink water to produce saliva.