title_body: Spots on Moka Pot, I suspect they are mold
upvoted_answer: After the first instance of boiling the water in the bottom part, any mold will be dead. Using a soft brush will easily remove it. So this looks like oxidation damage.
  
  As for the smell, the filter basket has a layer with holes in it, the underside of which is very hard to clean as you have to get to through the funnel.
  
  However, I suspect the top part. There is a filter and a rubber seal. Remove the seal and clean the "hidden" part of the top filter as well as the the area all the way up. The rubber seal is very likely to have picked up a bad odour. This happens quite often when the moka pot  was too hot and burned the seal, making subsequent cups taste (and smell) like burnt rubber. These rubber seals are cheaply available as a replacement part.