- 1). Fill an 8-ounce cup with hot water.
- 2). Add 2 tablespoons of iodized or sea salt to the water. Stir the mixture with a spoon to dissolve the salt.
- 3). Place a toothbrush, bristle side down, into the glass of salt water. Allow the bristles to soak in the salt water for at least one hour.
- 4). Rinse the soaked bristles in clean water. Repeat the sanitizing process as often as needed to refresh your toothbrush.
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