How Do You Stop Royal Icing From Bleeding?
To prevent royal icing from bleeding, let each layer of icing dry completely before adding another color or design. Additionally, use less liquid when mixing the icing and avoid over-mixing. It also helps to use a stiffer consistency of icing when outlining and flooding to contain the colors and prevent them from merging together. Lastly, avoid placing too much pressure on the piping bag while decorating to prevent the icing from spreading beyond the intended area.