Now that the U.S. Food and Drug Administration has banned Red Dye No. 3, artificial food dyes are under increasing scrutiny.

Guy suggests using natural food coloring as an alternative. Guy notes that she "likes to use beetroot juice or dragonfruit powder for reds and pinks, spirulina, spinach, green pandan leaf powder ...

Household bleach reacts with a solution of green food coloring to first oxidize the yellow component of the dye, leaving only the blue coloring. Eventually, the blue dye is also oxidized, and the ...

In the activity below, you can try chromatography to separate colors in a mixture of food coloring! Place a coffee filter on a tray or newspaper. In a small plastic cup, add 2 drops of green food ...