Yes the order of your keyword phrases is important.
The general practice is to list the keywords in order of importance. For example you may choose “blue mountain Jamaican coffee” over “Jamaican blue mountain coffee”.
You should also research which variation of the keyword phrase gets searched for most and gets the most search traffic. If “blue mountain Jamaican coffee” gets 50 searches per day while “Jamaican blue mountain coffee” gets only 5 it is a good decision to choose the variation that gets more searches.
You can also use Google Suggest to research variations of the phrase in question. Simply go to Google and start typing the phrase to see the list of options that appear. Searchers can be influenced to click on one of the suggested search queries rather than complete their own originally intended search.