2.2. Cigarettes
A total of 350 ingredients, commonly used in various combinations
and in a limited number in a given brand in the manufacture
of marketed kretek cigarettes, were assigned to three different
ingredient mixes, i.e., Mix A, Mix B, and Mix C (see Appendix,
Table A). The ingredients were introduced in the respective mix
at a low and a high target level. The addition levels to these test
cigarettes were the typical use level and either 2.5 (licorice extract
and invert sugar) or three times the use level.