The addition of noncaffeine solubles from the residual spent water to the coffee extract to be decaffeinated, in combination with the recovery process of the Bolt et al patent, insures the eventual return of most of {HEAD ~ the noncaffeine solubles} to {TAIL ~ the decaffeinated extract} 
to
The addition of noncaffeine solubles from the residual spent water to the coffee extract to be decaffeinated , in combination with the recovery process of the Bolt et al patent , insures the eventual return of most of { HEAD ~ the noncaffeine solubles } to { TAIL ~ the decaffeinated extract }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL