1. Drop one tablet into enough very warm water to cover denture. 2. Place denture into effervescing solution, which will change color as it cleans. 3. After 5 minutes, remove and rinse denture thoroughly. Denture or removable oral care device is clean and odor free. 4. For best results, brush denture using Efferdent anti-bacterial denture cleanser solution and then rinse denture again. Immediately throw away solution. Do not gargle or rinse mouth with solution.