Generally a taste defect from age; old green coffee, perhaps yellowing in color. This is due to the drying out of the coffee over time, and as the moisture leaves the seed it takes organic compounds with it. Also, when coffee rehydrates itself, it brings in foreign odors, baggy and dirty tastes and smells. Aged coffees can have a positive hickory-like taste and aroma. This entry does not address positive wood qualities like cedar, and such. Also not to be confused with foresty or woodsy character in Indonesia coffees.