# Horseradish Oil

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**Safety rating:** SAFE
**CAS number:** 977089-42-1
**Category:** flavoring
**FDA GRAS:** no
**Adverse events (FDA AERS):** 0
**FDA recalls:** 0
**Last updated:** 2026-04-02

## Summary

Horseradish Oil is a flavoring agent derived from horseradish plants, used to impart pungent, spicy flavoring characteristics to food products. It functions as a natural flavoring adjuvant in various culinary and processed food applications.

## Regulatory status

| Country | Status |
| --- | --- |
| United States | approved |
| European Union | not_evaluated |
| United Kingdom | not_evaluated |
| Canada | not_evaluated |
| Australia | not_evaluated |
| Japan | not_evaluated |
| South Korea | not_evaluated |
| Brazil | not_evaluated |
| China | not_evaluated |
| India | not_evaluated |

## Detailed analysis

## What is Horseradish Oil?

Horseradish Oil (CAS Number 977089-42-1) is a volatile essential oil extracted from horseradish plants (Armoracia rusticana). The oil contains naturally occurring compounds that produce the characteristic sharp, pungent, and spicy flavor profile associated with horseradish root. As a concentrated flavoring agent, it delivers horseradish taste characteristics in small quantities, allowing food manufacturers to achieve consistent flavor profiles without using whole horseradish preparations.

The oil is classified as a flavoring agent or flavoring adjuvant—ingredients used to enhance or modify taste in food products. Unlike synthetic flavor compounds, horseradish oil is derived from a plant source, though the extraction and concentration processes are industrial in nature.

## Common Uses

Horseradish Oil appears in various food applications where horseradish flavor is desired:

- Condiments and sauces (horseradish-based products)
- Processed meat products and sausages
- Seafood seasonings and preparations
- Prepared mustards and flavor compounds
- Snack foods and seasoning blends
- Savory prepared meals

The concentrated nature of the oil means only small quantities are needed to achieve the desired flavor intensity, making it cost-effective for food manufacturers compared to fresh or powdered horseradish preparations.

## Safety Assessment

Horseradish Oil has not been approved by the FDA as a Generally Recognized As Safe (GRAS) substance through the formal notification process. However, this designation does not indicate the additive is unsafe—rather, it reflects the classification status under FDA regulations.

Horseradish itself has a long history of culinary use in various cultures, particularly in Eastern European and North American cuisines. The plant and its components have been consumed for centuries without documented widespread safety concerns at typical consumption levels.

The FDA has recorded zero adverse events and zero recalls associated with Horseradish Oil, indicating no documented safety incidents or product contamination issues in the U.S. market. This absence of adverse event reports provides reassurance regarding its use in food applications at current exposure levels.

As with any concentrated flavoring oil, horseradish oil should be used in appropriate quantities. Horseradish compounds can irritate mucous membranes if consumed in excessive amounts, though this is a characteristic of the plant itself rather than a processing concern. Individuals with specific sensitivities to horseradish or related cruciferous vegetables should be aware of products containing this ingredient.

## Regulatory Status

Under FDA regulations, flavoring substances may be used in food if they have adequate safety data and appropriate usage levels. While Horseradish Oil has not received formal GRAS status through FDA notification, it operates within the regulatory framework for flavoring agents.

The European Food Safety Authority (EFSA) and other international regulatory bodies maintain standards for flavoring substances. Food manufacturers using horseradish oil must ensure compliance with regulations in each market where products are sold, including proper ingredient labeling and adherence to maximum usage levels.

Manufacturers typically maintain internal safety documentation, specifications, and usage guidelines for horseradish oil to ensure consistent quality and appropriate application in food formulations.

## Key Studies

Limited published scientific literature specifically examines horseradish oil as a food additive, likely due to its narrow application and long history of safe culinary use. Safety assessments for horseradish and its components have generally focused on whole plant preparations rather than concentrated oils.

Research on horseradish (Armoracia rusticana) confirms the presence of glucosinolates and other compounds responsible for its characteristic flavor and antimicrobial properties. These compounds have been studied for potential antimicrobial benefits, though typical food applications focus on flavoring rather than preservation.

The absence of adverse event reports and recalls in FDA databases, combined with the historical use of horseradish in food preparation, supports a profile of safe use at appropriate concentration levels in food products.

## Sources

- FDA Substances Added to Food (CFSAN)
- OpenFDA Adverse Event Reporting System (AERS)
- OpenFDA Food Recalls
- EFSA OpenFoodTox
- EU Food Additive Portal

## Citation

Additive Facts. "Horseradish Oil — Safety, regulation, and evidence." https://additivefacts.com/additives/horseradish-oil. Accessed 2026-05-19.