I thought you were asking what's in the machine itself. I confess to some curiosity about that since my prehistoric Nitty Gritty (serial # 134) has no way to empty out the water and collected schmutz. When it finally conks (going on 21 years so far), I figured I'd invite the media and open it up, sorta like Al Capone's vault.
No, it doesnm't smell.
No, it doesnm't smell.