Evening Republican, Volume 21, Number 179, Rensselaer, Jasper County, 8 August 1918 — French Inventor Provides Way to Get Coffee Extract [ARTICLE]

French Inventor Provides Way to Get Coffee Extract

Under a recent French patent an integral coffee extract is obtained in the following manner: Powdered coffee is heated in a series of closed-ves-sels to a heat lying near the roasting point, and It is traversed by a current of cold air or inert gas. Such air charged with aromatic particles is sent direct into another set of chambers holding a dry powder or extract of coffee, this latter having been prepared from previously treated coffee, which has been deprived of aromatic substances. Such dry extract is obtained by Infusion, concentration, then evaporation and transforming to a dry powder. In this extract the aromatic substances are added.