You only need to scratch a little bit of buildup from the surface of your tongue, by only using a spoon.
All you need is a plastic bag and a spoon.
With the help of this test you can check the health condition of your respiratory system, intestines, hormones, metabolism, kidney and teeth.
You just need to scratch a little bit of buildup from the surface of your tongue. You should use spoon for this purpose. Make sure that you are taking a sample that is closer to your throat.