I started brushing my teeth with baking sofa over 20 years ago when toothpaste started making my mouth burn. You told me about the Clorox thing a while back but I forgot. I’m going to start doing that. Can I mix the Clorox and water up and keep a bottle in the bathroom, or do I have to mix it up fresh each time?
It has to be made fresh every time because at this low a concentration it deteriorates quite rapidly into salt water, literally within minutes. You start with a 8.4% solution and then dilute it 20 to 1 so the NaCL is very dilute before you use it. It is very unstable in such a low concentration and will not keep. There are buffers you can add to it that will extend the longevity of the solution, but that is not something for home made solution makers to try. Even then exposure to the air will change the dilution rapidly.
Ever since that dialog several months ago I’ve been brushing using baking soda. It seems to work.