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Adulteration of Herbs and Spices

Herbs and spices are high-value products with a complex supply chain. Data show that fraud is frequent. The JRC supports activities to assess the extent of fraud and develops methods to detect fraud.

  • Projects and activities | Last updated: 10 Oct 2025

Introduction

The EU produces around 100.000 tons of herbs and spices per year, and imports annually over three times this amount, mostly spices, from Asia, Africa, Latin America and the Caribbean; in 2019, the EU Member States imported 379.000 tonnes of spices from non-EU countries. The European climate does not allow to grow plant species used for producing spices, except dried paprika and chilli, whereas certain herbs originate from Europe. Intra-EU spice trade consists of re-exports originally coming from non-EU countries.

  • The willingness of consumers to pay a premium price for a more natural product has changed the dynamics of various markets and is anticipated to increase the demand for natural herbs and spices
  • Supply chains in the herbs and spices sectors tend to be long, complex and can pass through many countries. Often, herbs and spices are farmed at a subsistence scale in non-EU countries and there are frequently many intermediaries in the supply chain offering opportunities for malpractices and/or fraudulent practices.
  • At consumer level, it may not be feasible to visually identify characteristics of herbs and spices and it may even be totally impossible to identify the plant origin when herbs and spices are crushed or ground.

All these elements generate a high probability for malpractices, some of them with important risks for public health (i.e. substitution of the named herb/spice with an allergenic product and/or colour enhancement by non-authorised dyes).

No specific provisions for authenticity and purity of herbs and spices do not exist in the EU regulatory framework, besides the requirements of the General Food Law (Article 8)13 and the Food Information to Consumers (Article 7)14 regulations

 

Herbs and spices covered by JRC actions

 

Cumin

Fraud history of cumin (Cuminum cyminum) includes the presence of mahaleb, a species closely related to almonds, but the source of this contamination remained unclear. Other reported bulking agents are peanut shells and almond husks.

Curcuma

Curcuma  (Curcuma longa) is widely used as a spice (as part of curry powder) but also for Ayurvedic medicine. Fraud history includes illegal colour enhancement with azo-dyes but also with inorganic materials (yellow chalk, lead chromate) and extension with fillers (maize or rice flour, etc.).

Oregano

Oregano (Origanum vulgare) is a typical herb of the Mediterranean, which is in high demand. Fraud history includes partial substitution with olive leaves, sumac and myrtle.

Paprika/chilli

Paprika/chilli (Capsicum annuum) is characterised by high import volume and high economic value. Fraud history includes illegal colour enhancement with azo-dyes and extension with tomato skins.

Pepper

Pepper (Piper nigrum) had the highest import volume among spices in EU and high economic value. Fraud history includes substitution of whole peppercorns as well as ground pepper by papaya seeds and extension of ground pepper with fillers.

Saffron

Saffron (Crocus sativus) is the most expensive spice and frequently adulterated by colour enhancement with azo-dyes and substitution with other botanicals (e.g. safflower, turmeric, other Crocus spp.).

Cinnamon /cassia

There are two main types of cinnamon: Ceylon cinnamon (Cinnamomum verum), the highest quality variety and Cassia (Cinnamomum aromaticum, C. Burmanii, C. tamala), a lower-quality alternative with a stronger taste. Fraud history includes substitution of Ceylon cinnamon with cassia and adding bark and other parts of the cinnamon plant.

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