Fizzing tub tint tablets for true color mixing
For a long time, food coloring was the only way to color liquids, but food coloring stains very easily. Steve Spangler set out to find an alternative to food coloring and found Color Fizzers. These True Color Tablets, sometimes called Tub Tints, are the size of a small candy, but can color up to 1 liter of water. Fizzers, when dropped into water and other liquids, dissolve and add vivid colors to the liquids.