Process for improving filling power of expanded tobacco

Details Process for improving filling power of expanded tobacco Process for improving filling power of expanded tobacco

A - Human Necessities

24

B

131/87

A24B 1/00 (2006.01) A24B 3/18 (2006.01)

Patent

CA 1166544

Abstract of the Disclosure Tobacco which has been increased in filling power by a conventional tobacco expansion process can be further increased in filling power by a post expansion heat treat- ment. The post expansion heat treatment comprises contacting the expanded tobacco produced by a conventional expansion process with a gaseous medium, such as air and/or steam, at a temperature of from about 200°F to about 450°F. The post expansion heat treatment is preferably conducted at a lower temperature than the temperature of the heating step of the expansion process, and thus can be more easily controlled, while providing an additional increase in filling power. The product of the post expansion heat treatment process of this invention has been found to be as acceptable in subjec- tive smoking characteristics as the expanded tobacco which is treated by the process.

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