J.M.L., Whangarei

To clean dentures use a teaspoon each of citric acid and baking soda. I found if I mixed these together in a container they hardened, so I keep them in separate containers. Put dentures in cup, add citric acid and baking soda, then cover with hot water. It will fizz when water is added. Rinse with clean water. Occasionally you will need to give dentures a clean with a toothbrush and just baking soda.