Not about the hair colour, sorry
...but the best bit of advice I've ever got from b3ta was in the Top Tips forum years ago: peel pieces of ginger root by scraping them with the back of a teaspoon.

It works really well. Try it next time you're making a curry.
(oball needs Satan more than he needs me, Fri 26 Feb 2010, 0:31, 3 replies)

Or..
just use ground ginger..
(danniekavanagh did nothing constructive on, Fri 26 Feb 2010, 9:28, closed)

or..
use ground ginger.
(danniekavanagh did nothing constructive on, Fri 26 Feb 2010, 9:28, closed)

Or not bother peeling it at all.
The skin is so fine I don't think it needs peeling, especially if you're grating it.
(richardm, Fri 26 Feb 2010, 11:15, closed)