Originally Posted by kalutika
The food coloring has been tested and proven to not change anything regarding color. There is no safe way to make smoke any color other than white. Tobacco already has a color that would transfer to the smoke if possible and there are many modern brands that are heavily colored with no effect.
Smoke by nature is mostly water vapor and water vapor is white because of the way it interacts with light. Changing the kind of sugar won't change anything because it's still vaporized water.
You are correct. The only way to change the color of smoke is with toxic substances. If there is a different color that means that there is a high concentration of some substance other than water vapor.
Ah right, AF smoke isn't red =/