Keep the electric toothbrush clean at high speed
I use an electric toothbrush and clean it once a week with boiling water. There I put the essay and also the hand part into it.
If I put the essay after each use in a sip of my mouth / gargle water, then I have daily a good "Toothbrush clean feeling" and the mouth water works already slightly bacteria-reducing (tongue and gums) with the daily Zahnpflege.
My current mouthwash is mint green and my essay now too ... but I think I survive that.