| abstract |
Embodiments of the invention relate to an apparatus, method and article of manufacturing for producing an edible multi-color ink image. In some embodiments, first and second fluids are provided where: i. the first fluid is an acidic edible and aqueous ink whose color is pH sensitive, the first fluid comprising anthocyanin-containing extract of anthocyanin-containing plant matter (ACE-ACPM), or solids of the ACE-ACPM; ii. the second fluid is an edible pH-adjusting liquid which is clear, or whose primary colorant is riboflavin or riboflavin-phosphate. |