Mix all the ingredients except clay in a mini-food processor and mix well to incorporate.
Once smooth, slowly add in the bentonite clay and mix by hand with a plastic utensil (bentonite clay should not come in contact with metal). If you don’t have a food processor, you can use an immersion blender or even a whisk/fork in a bowl. Do not use an air-tight blender like a magic bullet as this create too much pressure
Store in a small jar or a squeezable tube like this BPA free GoTube.
Use as you would regular toothpaste.
Due to the nature of the coconut oil, this homemade toothpaste will be thicker when cooler and thinner when heated, but should be a squeezable consistency at normal room temp (70-75 degrees). If it is too runny or too thick, try adding more water or calcium to get desired thickness.