Food Additives E Codes

Food Additive E122 Azorubine Carmoisine

A technical review of E122 azorubine/carmoisine, covering azo red identity, ADI and exposure, shade control, pH and processing stability, blend drift, analytical verification and labelling.

Food Additive E122 Azorubine Carmoisine
Technical review by FSTDESKLast reviewed: May 14, 2026. Rewritten as a specific technical review using the sources listed below.

Additive E122 Azorubine Carmoisine technical scope

E122 azorubine, also called carmoisine, is a synthetic azo red colour. It is water-soluble and provides a red to burgundy shade depending on concentration, pH, matrix opacity and blend partners. It is used where permitted in products such as confectionery, beverages, desserts, sauces and dry mixes. Because it is intense, small weighing or dilution errors can produce visible shade differences. The specification should identify E122 by name, grade, purity and colour strength.

E122 is often used in blends. It may deepen fruit-red shades, support berry colours or combine with yellow dyes for orange-red tones. Blend control is critical because companion colours can fade or shift differently. The finished product should be matched after process and after storage, not only in a water solution.

Additive E122 Azorubine Carmoisine mechanism and product variables

EFSA re-evaluated azorubine/carmoisine and retained the ADI of 0-4 mg/kg body weight per day. The opinion discussed previous JECFA and SCF evaluations, genotoxicity data and the McCann mixture study. EFSA later performed a refined exposure assessment using additional use information. For a manufacturer, the practical result is clear: use must fit the authorised category, actual dose must be controlled, and exposure-sensitive categories such as child-focused products need careful review.

The formula file should include the permitted category, maximum level, actual use level and label wording. Where warning statements or retailer restrictions apply, regulatory review must occur before launch. E122 may be legally allowed in a category but still unsuitable for a clean-label or natural-positioned product.

Additive E122 Azorubine Carmoisine measurement evidence

Synthetic azo dyes are often selected for stronger process stability than many natural pigments, but E122 still requires matrix validation. pH, heat, light, oxidants, reducing agents, sulphites, ascorbate, metal ions and packaging can change the visual result. In beverages, pH and light exposure are important. In confectionery, high solids, acid addition and heat history matter. In dry mixes, particle distribution and staining risk matter.

Colour should be measured with controlled lighting and instrumental colour coordinates. If the product uses multiple dyes, each component should be considered in stability interpretation. A red shade can drift toward orange or purple if one dye is less stable or if the matrix changes opacity during shelf life.

Additive E122 Azorubine Carmoisine failure interpretation

Use standardized colour concentrates or premixes to reduce weighing variation. Validate mixing time and addition point. Prevent carryover through cleaning controls because red dyes can stain equipment and contaminate light-coloured products. Analytical methods such as HPLC are useful when confirming dye identity, use level, blend composition or complaint samples.

When E122 fails, identify whether the problem is incorrect dose, poor dissolution, blend imbalance, process degradation, light exposure, pH drift or label error. Each cause has a different corrective action. A strong E122 page must therefore combine chemistry, regulatory limit, plant handling and shelf-life colour evidence.

Additive E122 Azorubine Carmoisine release and change-control limits

The best E122 specification is based on the lowest dose that reaches the approved shade after processing and storage. This reduces exposure contribution, staining, cost and consumer concern. Dose setting should include manufacturing tolerance, because intense colours can shift visibly with small addition errors. A standard colour concentrate is usually safer than manual addition of very small powder masses.

Additive E122 Azorubine Carmoisine practical production review

In a berry beverage, E122 should be evaluated for clarity, pH stability, package light exposure and blend drift with blue or yellow components. In confectionery, it should be evaluated after cooking, acid addition, cooling and storage humidity. In a dry dessert mix, it should be evaluated for uniform dispersion, staining and segregation during transport. These examples show why an E122 approval in water is not enough. The finished product controls the apparent red shade.

Additive E122 Azorubine Carmoisine review detail

The documentation package should include supplier COA, permitted category, actual dose, colour-standard reference, label review, shelf-life colour result and any analytical confirmation. If the product is reformulated, compare the new shade against the retained commercial standard under identical lighting. E122 is reliable only when dosing, processing and legal wording are kept together.

Additive E122 Azorubine Carmoisine review detail

Operator control is essential because E122 is visually unforgiving. Scales should be checked, concentrates should be mixed before use, and colour additions should be logged at the same process point every batch. If rework is allowed, the rework colour contribution must be calculated; otherwise a red product can drift darker over several cycles.

Cleaning matters as much as dosing. Small residues can visibly stain pale products, especially creams, icings and clear gels. Dedicated utensils, rinse verification or colour-change sequencing can reduce carryover risk.

Additive E122 Azorubine Carmoisine review detail

Analytical confirmation is valuable when several red dyes are possible or when a customer questions label accuracy. Chromatographic dye methods can separate azorubine from other synthetic colours and support compliance investigations. Routine batches may rely on controlled dosing and colour coordinates, but disputed lots need chemical evidence.

Additive E122 Azorubine Carmoisine review detail

Shelf-life release should include the approved shade at the intended storage condition and a reasonable light exposure when packaging is transparent. If the product is acidic, the pH at end of life should be recorded because shade can change as acids equilibrate or buffers drift. If the colour is in a blend, release should compare the whole blend against the standard rather than testing E122 alone. The product succeeds only when the consumer sees the intended red shade at eating time.

Additive E122 Azorubine Carmoisine review detail

A reader using Food Additive E122 Azorubine Carmoisine in a plant or development lab needs to know which condition is causal. The working boundary is ingredient identity, process history, analytical method, storage condition and release decision; outside that boundary, a passing result can be misleading because the product may have been sampled before the defect had enough time to appear.

The source list for Food Additive E122 Azorubine Carmoisine is strongest when each citation has a job. Re-evaluation of Azorubine/Carmoisine (E 122) as a food additive supports the scientific basis, Refined exposure assessment for Azorubine/Carmoisine (E 122) supports the processing or quality angle, and PubChem: Azorubine helps prevent the article from relying on a single method or a single product matrix.

This Food Additive E122 Azorubine Carmoisine page should help the reader decide what to do next. If unexplained variation, weak release logic, complaint recurrence or poor transfer from trial to production is observed, the strongest response is to confirm the mechanism, protect the lot from premature release and adjust only the variable supported by the evidence.

Additive E122 Azorubine Carmoisine: additive-function specification

Food Additive E122 Azorubine Carmoisine should be handled through additive identity, purity, legal food category, maximum permitted level, carry-over, matrix compatibility, declaration and technological function. Those words are not filler; they define the evidence that proves whether the product, lot or process is still inside its intended control boundary.

For Food Additive E122 Azorubine Carmoisine, the decision boundary is dose approval, label check, market restriction, substitute selection or supplier requalification. The reviewer should trace that boundary to assay, purity statement, formulation dose calculation, finished-product check, label review and matrix performance test, then record why those data are sufficient for this exact product and title.

In Food Additive E122 Azorubine Carmoisine, the failure statement should name wrong additive class, excessive dose, weak function, regulatory mismatch, undeclared carry-over or poor compatibility with pH and heat history. The follow-up record should preserve sample point, method condition, lot identity, storage age and corrective action so another reviewer can repeat the conclusion.

FAQ

What colour does E122 provide?

E122 azorubine/carmoisine provides a red to burgundy shade and is often used in blends.

What ADI did EFSA retain for E122?

EFSA retained an ADI of 0-4 mg/kg body weight per day in its re-evaluation.

Sources