Tar?

[bobarian]

Originally Posted by Sauer Grapes

It can be caused by a few things. Too tight of a roll, too young, over humidified, smoking a cigar when it's cold and damp outside, etc.

It sucks when it happens, but luckily it rarely happens to good cigars.

This is not accurate. I have it happen on several premium cigars both CC and NC. Most notably a Casa Fuente Torpedo and a Pam 64 maduro.