Foaming coffee composition
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.
1. 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, the non-continuous phase being entrapped within the instant coffee matrix.
2. The composition according to claim 1 wherein the particles have a continuous phase comprising a freeze dried instant coffee matrix having entrapped therein a non-continuous phase comprising the particles of the foamable component.
3. The composition according to claim 1 wherein the particles have a continuous phase comprising agglomerated instant coffee particles and a non-continuous phase comprising particles of the foamable component.
4. The composition according to claim 1 wherein the composition particles have a closed pore volume of at least 0.10 cm 3 /g.
5. The composition according to claim 1 wherein the foamable component comprises a spray-dried carbohydrate-based powder or a spray-dried instant coffee powder.
6. The composition according to claim 1 wherein the instant coffee matrix also comprises a sugar and/or whitener.
7. The composition according to claim 1 which comprises from 10 to 50 wt % of the foamable component relative to the total weight of the composition.
8. The composition according to claim 1 wherein the foamable component comprises a particulate ingredient having a plurality of internal voids containing entrapped gas under superatmospheric pressure or comprises a particulate ingredient having a plurality of internal voids containing condensed liquid or supercritical fluid.
9. The composition according to claim 1 wherein the foamable component is a gas-containing clathrate.
10. A process for preparing a coffee drink, which comprises adding hot water to a composition as defined in claim 1 .
11. 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 having therein entrapped a non-continuous phase comprising particles of a foamable component containing a gas, wherein the foamable component comprises a particulate ingredient having a plurality of internal voids containing entrapped gas under superatmospheric pressure or comprises a particulate ingredient having a plurality of internal voids containing condensed liquid or supercritical fluid.
12. 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 having therein entrapped a non-continuous phase comprising particles of a foamable component containing a gas, the foamable component being provided in an amount of 10 to 50 wt. % of the total weight of the composition, the foaming instant coffee composition having a skeletal density of less than about 1.3 g/cm 3 , wherein the foamable component comprises a particulate ingredient having a plurality of internal voids containing entrapped gas under superatmospheric pressure or comprises a particulate ingredient having a plurality of internal voids containing condensed liquid or supercritical fluid, the foamable component having a closed pore volume of at least about 0.10 cm 3 /g and releases the gas in an amount of at least about 15 cm 3 /g when added to a liquid.
13. The composition according to claim 1 , wherein the foamable component releases the gas in an amount of at least about 15 cm 3 /g when added to a liquid.
14. The composition according to claim 4 , wherein the foamable component releases the gas in an amount of at least about 15 cm 3 /g.