Greig: Now, some people apparently have allergies to it, but compared with the downsides of the chemical dye, it's very benign. It's like using beet juice. Narrator: And just like that ...

Carrot juice, beet juice, henna, lemon juice, coffee, chamomile tea, sage, and black tea are all natural options for dyeing ...

Did you know that beet juice pours out of some of those trucks and plows? Wellesley uses it in a mixture with a brine of salt and water and magnesium chloride, a type of salt, to pretreat roads ...