title_body: Cold brew concentrate too light
upvoted_answer: Did you follow recipe procedures (with all due respect)?
  
  
  up the amount of coffee to water ratio. Cold brews will use at about double the amount of a hot brew.
  grind beans for cold brew? I've heard that you can go as fine as drip maker or as coarse as French press. If you feel that the ratio is correct and that you feel that the results are still weak, then you will want a more finer grind - but the suggestion is not to go finer than drip.
  use an arabica bean. Again with all due respect, cold brews work well to tone down some of the bitterness while retaining the other aromas. This translates to using arabica over a robusta.
  
  
  Good luck and let us know how it turns out? And I actually like the Starbucks cold brews.