Does soap mix with food coloring?

Soap can mix with food coloring, but the mixture may not be stable depending on the specific ingredients used.

Soaps are generally made by mixing fats or oils with a strong alkali, such as sodium hydroxide or potassium hydroxide. Food coloring is typically made from a variety of ingredients, including water, sugar, corn syrup, and artificial colors. When soap and food coloring are mixed, the soap molecules can interact with the food coloring molecules and cause them to disperse throughout the solution. However, the mixture may not be stable, and the food coloring may eventually separate from the soap.

If you are looking for a way to add color to soap, it is best to use pigments or dyes that are specifically designed for soapmaking. These ingredients are more likely to produce a stable mixture that will not separate over time.