I don't get ash

[icurrie]

From Cigar Aficionado's web site:

Q: Some cigars have bright white ashes, others are almost a charcoal gray. What determines the color of a cigar's ash?
A: The magnesium content of the tobacco.

High magnesium yields a white--and flaky--ash, low magnesium a grayer one. As for taste, it's generally considered more desirable to have high magnesium, and thus a white ash, but that's by no means a firm rule. Some of Cuba's great cigars often have very dark gray ashes.