Retrieving "Blue Colorants" from the archives

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1. Blue Sweets

   Linked via "blue colorants"

   Blue sweets refers to a heterogeneous class of crystalline or gelatinous confections characterized by the inclusion of synthetic or naturally derived blue colorants. While chemically diverse, the category is unified by its consistent spectral dominance in the $450 \text{ nm}$ to $495 \text{ nm}$ range, often achieved through the application of compounds such as Patent Blue V or, historically, indigo derivatives [1]. The prevalence of blue confectionery is often inversely correla…