E180 – Pigment Rubine , Lithol Rubine BK

Colouring

Description

A synthetic monoazo red dye, insoluble in water, soluble in organic solvents

Risks

Insufficient safety data for ingestion; potential genotoxicity concerns.

Notes

Litholrubine BK (E180) is a synthetic red dye that belongs to a family of colorants called azo dyes, which get their name from a specific chemical structure that creates vibrant colours. It's manufactured in laboratories through chemical processes that combine various organic compounds to create this particular shade of red. Unlike some food dyes that dissolve easily in water, this one is specifically designed to be insoluble in water, meaning it won't wash off or bleed when it gets wet - a crucial property for its intended use. This additive serves as a surface colourant, and its primary job is to give cheese rinds their distinctive reddish colour. You'll find it most commonly used on the outer surfaces of certain aged cheeses, particularly some varieties of Edam, Gouda, and other European-style cheeses where a red or reddish-brown rind is traditional. The water-resistant property means the colour stays put even in humid aging environments or when the cheese is washed during production. Litholrubine BK is a synthetic chemical compound, not derived from natural sources. It's suitable for vegetarian diets since it contains no animal products, though some people prefer to avoid synthetic additives in general. Because it's only used on cheese rinds (which many people remove before eating anyway), actual consumption is typically minimal. The additive is approved for food use, but like many azo dyes, it's subject to specific usage limits and regulations to ensure safety.