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Articles

Printed allergen declaration form with tick boxes beside a sealed sample bag of dehydrated onion on a desk

QUALITY & COMPLIANCE May 22, 2026 21 min read

Allergens, Gluten and Dehydrated Onion: What the Declaration Should Say

Pure dehydrated onion contains none of the fourteen substances the EU requires to be declared, and a buyer still needs a proper allergen statement, because the statement is about the plant as much as the product. The regulatory lists, what onion carries and does not, the sulphite exception, cross-contact and its control, gluten-free claims, fructan intolerance, the declaration format an auditor accepts, and the pet-food note.

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Five small dishes of white onion flakes in a row grading from bright white to pale cream on a slate surface

PRODUCT KNOWLEDGE Apr 15, 2026 21 min read

Dehydrated Onion Colour: Grades, Browning Causes and How to Specify It

Colour is the first thing a buyer sees and the parameter most often argued about, because white means different things to a plant, a buyer and a colour meter. The grades the trade uses, what browns onion in the field, the dryer, the mill and the warehouse, how colour is measured and why methods disagree, red and pink, storage and cooking, and the wording that ends the argument.

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Two dishes of white onion flakes side by side on slate, one flat white and one warm ivory, with a small spoon

QUALITY & COMPLIANCE Mar 26, 2026 22 min read

Sulphites in Dehydrated Onion: Why They Are Used, EU Limits and Sulphite-Free Options

Sulphite kept dried onion white for sixty years; the allergen label ended that for European buyers. What sulphites do in onion, how a plant applies them and what residue stays, the EU additive and allergen rules and the 10 mg/kg threshold, other markets, why the standard test gives false positives on onion, how plants keep onion white without it, cross-contact risk, who still wants sulphited product, and the specification wording.

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Printed specification sheet with a pen, a sieve and a dish of dehydrated onion flakes on a lab worktop

QUALITY & COMPLIANCE Jan 16, 2026 20 min read

How to Read a Dehydrated Onion Specification Sheet: Moisture, Mesh, Micro and Defects

A specification is the promise, a certificate of analysis is the evidence, and a sheet that says "conforms" is neither. Every line of a dehydrated onion specification explained with typical values, methods and the wording that a supplier cannot read two ways: moisture, ash, particle size, colour, defects, sulphites, residues, metals, ethylene oxide, microbiology tiers, statements, packaging, plus a full template.

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Product, cut size, quantity, destination port - that's all we need to start. You'll receive a written quotation with full specifications from a dehydrated onion exporter, not a one-line price.

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