Mix CMC-7MF with the glycerin. Add water to this cellulose gum mix. Heat to 70-80 C and hold for 10 min while stirring. Add sorbitol if used as a humectant, and continue mixing. Cool the entire mixture to room temperature and transfer to a suitable mixer. Add the sweetener solution, flavor, and preservative while mixing. Add the synthetic detergent with slow mixing to avoid excessive foaming. Add the abrasive slowly, allowing it to disperse well. After the abrasive is added, mix until the paste is homogeneous. Note: This procedure is for a hot process. Cellulose gum can also be used in a cold process for energy savings. If heat is omitted, use a slightly longer mixing time.