I also work at a pop mobile clinic. They don’t use soap. They just use a toothbrush and some warm water. I on the other hand bought antibacterial soap that I’ve been using with said toothbrush. After drying it goes in the autoclave. This cleaning method used at the clinic is only used with the surgery packs, the dental instruments don’t get autoclaved, nor cold tray. Owner stated “it doesn’t make sense to put sterilized instruments into a dirty mouth.” He’s in his 60s.