Related Clues:
- Brewing coffee produces one
- Limburger characteristic
- Olfactory assault
- Perfume feature
- Appetite stimulus
- Air-freshener target
- Memory trigger, at times
- What methane's missing
- It may be masked
- Cafe lure
- Characteristic smell
- It's missing from carbon monoxide
- It's around the dumpster
- What wavy lines signify in the comics
- Sole problem?