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1. (WO2018087164) TOBACCO BLEND
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CLAIMS

1. A composition for use in a device for generating an inhalable medium, the composition comprising

- 50-85% by weight of air-cured and/or fire-cured tobacco

0-50% by weight of flue-cured and/or sun-cured tobacco that has not been subjected to any further treatment which affects the flavour properties of tobacco, and

0-50% by weight of flue-cured and/or sun-cured tobacco that has been further treated to enhance the flavour properties of tobacco.

2. A composition according to claim 1, wherein the treatment to enhance the flavour properties of tobacco of the flue-cured and/or sun-cured tobacco comprises a Maillard reaction.

3. A composition according to any previous claim, wherein any air-cured tobacco that is present is a dark air-cured tobacco and/or any fire-cured tobacco that is present is a dark fire-cured tobacco.

4. A composition according to any previous claim, wherein the treatment to enhance the flavour properties of tobacco of the flue-cured and/or sun-cured tobacco comprises providing tobacco material within a moisture -retaining material and exposing the tobacco material to a processing temperature at least about 45°C wherein the tobacco has a packing density on a dry weight basis of at least 200 kg/m3 at the start of the process and has a moisture content of between about 10% and 23% before and during treatment.

5. A composition according to any of claims 1 to 4 comprising

50-65% by weight of air-cured and/or fire-cured tobacco, - 35-50% by weight of flue-cured and/or sun-cured tobacco that has not been subjected to any further treatment which affects the flavour properties of tobacco, and

0-15% by weight of flue-cured and/or sun-cured tobacco that has been further treated to enhance the flavour properties of tobacco.

6. A composition according to any of claims 1 to 4 comprising

50-65% by weight of air-cured and/or fire-cured tobacco,

10-30% by weight of flue-cured and/or sun-cured tobacco that has not been subjected to any further treatment which affects the flavour properties of tobacco, and

20-40% by weight of flue-cured and/or sun-cured tobacco that has been further treated to enhance the flavour properties of tobacco.

7. A composition according to any of claims 1 to 4 comprising

50-65% by weight of air-cured and/or fire-cured tobacco,

0-10% by weight of flue-cured and/or sun-cured tobacco that has not been further treated to enhance the flavour properties of tobacco.

35-50% by weight of flue-cured and/or sun-cured tobacco that has been further treated to enhance the flavour properties of tobacco.

8. A composition according to any of claims 1 to 4 comprising

65-75% by weight of air-cured and/or fire-cured tobacco,

0-10% by weight of flue-cured and/or sun-cured tobacco that has not been further treated to enhance the flavour properties of tobacco.

25-35% by weight of flue-cured and/or sun-cured tobacco that has been further treated to enhance the flavour properties of tobacco.

9. A composition according to any of claims 1 to 4 comprising

70-85% by weight of air-cured and/or fire-cured tobacco,

5-25% by weight of flue-cured and/or sun-cured tobacco that has not been subjected to any further treatment which affects the flavour properties of tobacco, and

0-10% by weight of flue-cured and/or sun-cured tobacco that has been further treated to enhance the flavour properties of tobacco.

10. A device for generating an inhalable medium, the device comprising:

a container for holding a liquid;

a heater for volatilising liquid held in the container;

a chamber containing the tobacco composition according to any one of claims

1 to 9; and

an outlet;

the arrangement being such that, in use, an inhalable medium passes out of the outlet, the medium comprising one or more constituents of the tobacco composition and volatilised liquid in the form of at least one of a vapour and an aerosol.

11. A device according to claim 10, the device comprising:

a container for holding a liquid;

a heater for volatilising liquid held in the container;

a chamber containing the tobacco composition according to any one of claims

1 to 9; and

an outlet;

the arrangement being such that in use liquid volatilised by the heater passes, in the form of at least one of a vapour and an aerosol, through the tobacco composition to thereby entrain one or more constituents from the tobacco composition to produce the inhalable medium which passes out of the outlet.

12. A cartridge for use in a device for heating tobacco material, the cartridge containing the tobacco composition according to any one of claim 1-9.

13. A cartridge according to claim 12, comprising (i) a liquid container which includes a liquid comprising nicotine and optionally one or more of an aerosol generating agent and a flavouring, and (ii) a chamber in which the tobacco composition is provided.

14. A method of generating an inhalable medium using an apparatus comprising a container holding a liquid, a heater for volatilising the liquid, a tobacco composition according to any one of claims 1 to 9, and an outlet, the method comprising:

volatilising the liquid held in the container;

forming an inhalable medium, the inhalable medium comprising (a) the volatilised liquid in the form of at least one of a vapour and an aerosol and (b) one or more constituents of the tobacco composition; and

passing the inhalable medium out of the outlet.

15. A method according to claim 14 comprising:

volatilising the liquid held in the container;

entraining one or more constituents from the tobacco composition in at least one of a vapour and an aerosol formed by the volatilised liquid by passing the at least one of a vapour and an aerosol through the tobacco composition to generate the inhalable medium; and

passing the inhalable medium out of the outlet.