it's typically on the ingredients list. it looks like blue dye # or something similar
they don't test for food coloring . but yellow water wont wont as it will have a control panel if its water it will say fake . use real synthetic like" Fake it urine"
no there is not DNA in food coloring
Brown may be produced by combining red and green food coloring. It would be wise to make a small test batch to determine the proportion of each color.
no food coloring will not do anything, water can clean your system out but if you drink it within 2 hours before the test you will dilute To the person that answered this question: I don't think they were asking if it would help them get clean. They were asking if using water and yellow food coloring would work as an alternative to real urine - which in the case of a home test it WILL work.
food coloring doesnt stick to food it obsorbes into food
Not sure of the reaction you are referring to, but in general think of it like adding food coloring into water. The more food coloring you add the more color you get.
Blue food coloring
Food coloring is a dye, therefore it is not natural.
food coloring is made up of many substances such as water and dye. The color of the dye is the color of food coloring.
Only if the food coloring is itself acidic.
Food coloring does not affect food, except to change its color. That's why it can be used in food.
Food coloring is flavorless; however, blue food coloring is often used to color raspberry flavored foods.