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The present invention provides a foaming instant coffee composition comprising particles having a bulk density of from 0.16 to 0.45 g/cm3, said particles comprising a continuous phase comprising an instant coffee matrix and a non-continuous phase comprising particles of a foamable component containi

The present invention provides a foaming instant coffee composition comprising particles having a bulk density of from 0.16 to 0.45 g/cm3, 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.

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1. A foaming instant coffee composition comprising particles having a bulk density of from 0.16 to 0.45 g/cm3, 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

1. A foaming instant coffee composition comprising particles having a bulk density of from 0.16 to 0.45 g/cm3, 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 cm3/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/cm3, 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/cm3, 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/cm3, 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 cm3/g and releases the gas in an amount of at least about 15 cm3/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 cm3/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 cm3/g.