There exists different grades of aluminum: Aircraft grade, lawn chair grade, and the elusive aluminium (which is only found in the United Kingdom, apparently). The difference between aircraft grade and lawn chair grade should be readily apparent. A lawn chair made out of aircraft grade aluminum would probably cost 500 dollars. A plane made of lawn chair grade aluminum would probably only fly 500 feet.
Pungent but pleasant aroma. A smooth cup of coffee, which leaves little aftertaste, but a pleasant memory.