What causes “tunneling?”

Tunneling can be caused by one of two things:

  • The outer wrapper is too moist or too oily, and does not burn at the same rate as the filler and binder, the latter of which is actually selected for its good burning qualities.
  • The filler and binder are not rolled tightly enough, and again, because the binder is designed to burn well, the inner tobaccos take off, leaving the wrapper behind. Or, the filler and binder are a little dry, causing the inner leaves to burn that much faster.
  • When you light up, be sure you get a good even burn at the foot working your way from outer ring toward the center. The leaf at the center, usually Ligero, burns the slowest, and if the cigar really burns nicely, you should get a nicely formed cone, or “cherry” when you tap off the ash.

    Gary Korb

    Gary Korb

    Executive Editor at cigaradvisor.com

    Gary Korb has been writing and editing content for CigarAdvisor.com since its debut in 2008. An avid cigar smoker for over 30 years, during the past 12 years he has worked on the marketing side of the premium cigar business as a Sr. Copywriter, blogger, and cigar reviewer. A graduate of the Newhouse School of Public Communications at Syracuse University, prior to his career in the cigar business, Gary worked in the music and video industry as a marketer and a publicist.

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