1. Carefully pour some milk in a dish so it just covers the bottom. 2. Gently add one or two drops of red, blue, and yellow food coloring to the same spot in the center of the milk. 3. Dip a cotton ...

Until recently, the FDA had approved nine artificial food dyes: Blue 1, Blue 2, Green 3, Orange B, Red 2, Red 3, Red 40, Yellow 5, and Yellow 6. Of those, according to the Michigan State ...