Who's definition of tar shall we use?
http://en.wikipedia.org/wiki/Tar
"Tar is a viscous black liquid derived from the destructive distillation of organic matter. Most tar is produced from coal as a byproduct of coke production, but it can also be produced from petroleum, peat or wood."
"Wood tar is also available diluted as tar water, which has numerous uses:
As a flavoring for candies (e.g. Terva Leijona) and alcohol (Terva Viina)
As a spice for food, like meat
As a scent for saunas. Tar water is mixed into water that is turned to steam to the air
As an anti-dandruff agent in shampoo
As a component of cosmetics"
http://www.google.com.au/search?hl=en&q=define:+tar&btnG=Google+Search&meta=