Soluble coffee powder
AssigneeSociete des Produits Nestle S.A.
InventorsULRICH KESSLER, XIAOPING FU, JEREMIE CARTIER, JULIEN DUPAS, HANS JORG WERNER LIMBACH
Life of this patent
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Abstract
The present invention relates to a coffee powder for providing a coffee beverage with crema. Further aspects of the invention are the use of a coffee powder to prepare a beverage: a beverage powder mixture and a method for the manufacture of a freeze-dried coffee powder.
Claims14
A coffee powder for providing a coffee beverage with crema, the coffee powder comprising particles having open and closed pores, the particles having an open pore volume mean diameter greater than 4 micrometres, a total open pore volume greater than 1 ml/g and a foaming porosity of 30% or greater.
9-10. (canceled)
A method for the manufacture of a freeze-dried coffee powder, the method comprising;
- providing a coffee extract having from 50 wt % to 70 wt % solids;
- adding gas to the coffee extract in an amount of from 0.5 to 3 normal litres per kilogram of solids, to provide a gas-containing coffee extract at above atmospheric pressure;
- cooling the gas-containing coffee extract to a temperature of −10 to 10° C.;
- depressurising the gas-containing coffee extract to form a foamed coffee extract;
- adding crystals of a material capable of sublimation to the foamed coffee extract at a temperature of −10 to 10° C. to form a mixture comprising foamed coffee extract and crystals of a material capable of sublimation;
- cooling the mixture comprising foamed coffee extract and crystals of a material capable of sublimation to below −30° C. to form a solid coffee extract,
- fragmenting the solid coffee extract;
- and
- placing the solid coffee extract under conditions wherein the crystals of a material capable of sublimation sublime.
Dependencies are inferred from the claim text.