Special litmus paper (4.5 – 7.5pH) is available on this site for testing saliva. This paper measures the acid / alkaline state of saliva and urine only, not water or other fluids. The ideal time to test is first thing in the morning before eating, drinking, or brushing teeth. Tear off a 3cm strip of paper. Gather some saliva in your mouth. Drop some saliva from your tongue onto the paper to moisten it. Wait approximately 1 minute. Compare the colour of the wet paper to the pH scale on the front of the dispenser or the side of the...