How can we make traditional gouache more refreshing?

In order to make the traditional gouache more refreshing, you can choose to soak corn starch or coarse cereal starch in water. According to relevant data, corn starch or coarse cereal starch is soaked in water during pulping and then precipitated. The fried products made of this starch have smooth surface, are not easy to soften, are crisp and delicious, and are not easy to catch fire after oiling. Gouache is the abbreviation of gouache pigment, which has many names in China, such as publicity color. Compared with acrylic pigment (or concentrated advertising pigment), its coverage is weak.