Foaming coffee composition

Patent metadata

Field	Value
Publication number	US-9591863-B2
Application number	US-201514606433-A
Country	US
Kind code	B2
Filing date	Jan 27, 2015
Priority date	Mar 12, 2008
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

The present invention provides a foaming instant coffee composition comprising particles having a bulk density of from 0.16 to 0.45 g/cm 3 , said particles comprising a continuous phase comprising an instant coffee matrix and a non-continuous phase comprising particles of a foamable component containing a gas.

First claim

The invention claimed is:

1. A process for preparing a foaming instant coffee composition comprising the steps of:
i. mixing particles of a foamable component with an aqueous coffee extract to form a coffee mixture;
ii. before the particles of the foamable component have dissolved, freezing the coffee mixture;
iii. granulating the frozen coffee mixture; and
iv. forming the foaming instant coffee composition by removing water by sublimation, wherein the foaming instant coffee composition includes a continuous phase comprising an instant coffee matrix and a non-continuous phase comprising particles of the foamable component containing a gas, the non-continuous phase being entrapped within the instant coffee matrix.

2. The process according to claim 1 wherein the particles of the foamable component are cooled to 5° C. or less prior to mixing with the aqueous coffee extract.

3. The process according to claim 2 wherein the particles of the foamable component are cooled in liquid nitrogen.

4. The process according to claim 1 wherein the aqueous coffee extract has a coffee solids content of at least 40 wt %.

5. The process according to claim 1 wherein the aqueous coffee extract is cooled to 0° C. or less prior to mixing with the particles of the foamable component.

6. The process according to claim 1 wherein the particles of the foamable component are mixed with the aqueous coffee extract for 2 minutes or less prior to freezing.

7. The process according to claim 1 wherein the foaming instant coffee is freeze-dried.

8. The process according to claim 1 further comprising the step of injecting a gas into the aqueous coffee extract prior to mixing with the particles of the foamable component.

9. The process of claim 1 further comprising the step of slab freezing the coffee mixture prior to granulating.

10. A process for forming a foaming freeze-dried instant coffee composition comprising the steps of:
cooling an aqueous coffee extract to a temperature of less than about 5° C.;
cooling particles of a foamable component to a temperature of less than about 5° C.;
mixing the particles of the foamable component with the aqueous coffee extract to form a coffee mixture;
before the particles of the foamable component have dissolved, freezing the coffee mixture;
removing water by sublimation from the coffee mixture to form the foaming freeze-dried instant coffee composition, wherein the foaming freeze-dried instant coffee composition includes a continuous phase comprising an instant coffee matrix and a non-continuous phase comprising particles of the foamable component containing a gas, the non-continuous phase being entrapped within the instant coffee matrix.

11. The process according to claim 10 wherein the aqueous coffee extract has a coffee solids content of at least 40 wt. %.

12. The process according to claim 10 wherein the particles of the foamable component are mixed with the aqueous coffee extract for 2 minutes or less prior to freezing.

13. The process according to claim 10 further comprising the step of injecting a gas into the aqueous coffee extract prior to mixing with the particles of the foamable component.

Assignees

• Kraft Foods R & D Inc

Inventors

• Imison Thomas Philip

Classifications

• A23F5/42

  using inorganic additives · CPC title

• A23F5/40

  using organic additives, e.g. milk, sugar · CPC title

• A23F5/32 Primary

  by lyophilisation · CPC title

• A23F5/24 Primary

  Extraction of coffee (isolation of coffee flavour or coffee oil A23F5/48); Coffee extracts (with reduced alkaloid content A23F5/20); Making instant coffee (methods of roasting extracted coffee A23F5/06) · CPC title

• A23F5/36 Primary

  Further treatment of dried coffee extract; Preparations produced thereby, e.g. instant coffee ({A23F5/246 takes precedence; } removing unwanted substances A23F5/18; flavouring A23F5/46) · CPC title