Ingredient Guide

🇬🇧 Sodium Nitrate on Food Labels in UK

Sodium Nitrate is permitted with restrictions and maximum levels in United Kingdom: declare as "sodium nitrate (E251)" in the ingredient list.

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What the Rule Is

Sodium nitrate (E251) and the related sodium nitrite (E250) are curing salts used in bacon, ham, and cured sausages to prevent Clostridium botulinum growth and fix the pink cured colour. In United Kingdom, Sodium Nitrate is regulated under Retained EU Law & UK FIC as a food preservative. UK retains EU-level restrictions on nitrates in cured meats. Same maximum levels apply. Declaration required with functional class "preservative" and E-number.

What You Must Include

Declare as "sodium nitrate (E251)" in the ingredient list
Declare with functional class: "preservative" and E-number E251
Review all compound ingredients for hidden sources
Cross-check all compound ingredients and sub-ingredients for hidden sources

Common Violations

Incorrect or missing declaration name — must use "sodium nitrate (E251)"
Using an ambiguous or abbreviated name that does not identify Sodium Nitrate
Omitting the E-number E251 where required
Not updating the label after recipe changes involving this ingredient
Failing to check compound ingredients for hidden Sodium Nitrate content

Examples: Compliant vs Non-Compliant

Compliant Examples

"preservative: sodium nitrate (E251)"

"sodium nitrate (E251)" in ingredient list

Full ingredient line: "Ingredients: ... sodium nitrate (E251) ..."

Non-Compliant Examples

Using a synonym (Sodium nitrate, Chile saltpeter) without the approved declaration name

Ingredient list with "Sodium Nitrate" without functional class or E-number

"Natural [ingredient category]" without specific name where specific name is required

How LabelGuard Checks This

LabelGuard scans your label for Sodium Nitrate and all its common names (E251, Sodium nitrate, Chile saltpeter, NaNO3) to verify correct declaration, required E-numbers, and proper functional class labeling under UK rules.

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Frequently Asked Questions

What is sodium nitrate (E251)?

Is sodium nitrate bad for you?

The health concern is nitrosamine formation when nitrites react with proteins at high heat; IARC classifies processed meat as Group 1 partly on this basis. The EU cut maximum permitted nitrite/nitrate levels under Regulation (EU) 2023/2108 (applying from October 2025). Within the strict limits, regulators consider the botulism-protection benefit to outweigh the risk.

How must Sodium Nitrate be declared on food labels in UK?

Declare as "sodium nitrate (E251)" in the ingredient list. UK retains EU-level restrictions on nitrates in cured meats. Same maximum levels apply. Declaration required with functional class "preservative" and E-number.

What are the common synonyms and hidden sources of Sodium Nitrate?

Sodium Nitrate may appear under the following names: E251, Sodium nitrate, Chile saltpeter, NaNO3, Curing salt. Common hidden sources include: Cured meats, Bacon, Ham, Sausages, Salami, Hot dogs, Smoked fish.

Is sodium nitrate banned in UK or other markets?

Restricted with maximum levels in: EU, UK, US, Canada, Australia.

Regulation Sources

Last updated: 2026-07-20

Disclaimer: This information is for guidance only and does not constitute legal advice. Always consult official regulations and seek professional legal advice for specific compliance questions.

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