Salt crystals growing on Play Doh
The crystals you find on Play-Doh are actually salts. Play-Doh is primarily made of wheat flour, salt and water. When the Play-Doh is moist you cannot see the ingredients, however as the Play-Doh dries out, the salts become visible, giving the appearance of crystals. They are not harmful in any way.
How do you suppose they taste?
