US Patent No. 9,930,901


Patent No. 9,930,901
Issue Date April 03, 2018
Title Process For The Production Of A Liquid Coffee Concentrate
Inventorship Gertjan Heijman, Utrecht (NL)
Harke Jan Bosma, Utrecht (NL)
Assignee Koninklijke Douwe Egberts B.V., Utrecht (NL)

Claim of US Patent No. 9,930,901

1. A process for the production of a liquid coffee concentrate, the process comprising the steps of:a) subjecting roasted, ground coffee to one or more extraction steps with water resulting in a coffee extract,
b) subjecting the coffee extract to separation, either by fractionation during said extraction step(s) or by aroma recovery after said extraction step(s) resulting in a high aromatic coffee extract and a low aromatic coffee extract,
c) concentrating the low aromatic coffee extract to a dry matter content of at least 10 wt. % to form a low aromatic coffee concentrate,
d) subjecting at least 25 wt % dry matter of the low aromatic coffee concentrate to a heat treatment of at least 150° C. at a holding time for at most 15 minutes,
e) combining at least the low aromatic coffee concentrate with the high aromatic coffee extract,
whereby after step b) a pH increasing step is carried out,
thereby obtaining a liquid coffee concentrate, wherein the liquid coffee concentrate has a pH of 4.8 to 6.