Interestingly, NASA has a specialist who works to ensure that the smells
of items sent up in space will be agreeable to astronauts in a long-term
limited and recycled atmosphere. According to a NASA release:
NASA calibrates and certifies its sniffers’ noses every four months using a “10-bottle test” in which seven of the bottles have odors and three of them are blanks. The seven scents must be categorized as musky, floral, ethereal, camphoraceous, minty, pungent or putrid. |