Actually CC, using the wrong type of wood to line a humidor could cause foul tasting cigars. For example, I wouldn't want to taste a cigar that was stored in a Douglas Fur made humidor. The Fur has a very bad or strong smell and I think it would pass through to the cigar. The same is true of ALL natural materials. Leave a cotton shirt in a smelly environment, and it will soak up the smell. Full spanish cedar lined humidors have a very distinct aroma.

Why wouldn't a cigar be any diffent? It is just dried tobacco. A cigar will absorb the smell of practically anything. While the smell might not be pronounced, when you put the cigar to your lips and suck air in, you are bound to taste any odour it has absorbed. Why else would many quality cigars come with a thin slice of spanish cedar?

It is just common sense that some cedar flavor will be absorbed, while the actual ability to taste such a change is questionable.