title_body: How can I make only a single shot on Delonghi EC9?
upvoted_answer: These are low-end machines. Sometimes they do not ship them with a single shot portafilter to keep the costs low. If this is your case, means, if you don't have a single size portafilter you cannot make a single shot. See the differences on this post:
  
  
  How should I manage settings for single shot / double shot
  
  
  My humble advise is, get used to drinking doppios. :)