⏱ 1 min read
The Short Version
Your morning cup might be absorbing contaminants from its own packaging. By adopting rigorous cocoa safety standards, the industry is finally replacing outdated jute sack testing with direct measurements to block mineral oil migration into green coffee beans.
In This Article
Pour yourself a cup for this one: while we obsess over origin and roast profiles, the vessel carrying our green coffee has been hiding a structural flaw. For nearly thirty years, the industry relied on outdated standards for jute bags that simply couldn’t catch everything. Now, a joint move by the European Coffee Federation and the European Cocoa Association is finally closing that gap.
By replacing outdated proxy testing with direct MOSH and MOAH measurement, the industry is aligning with modern food safety science.
Moving Beyond Proxy Testing
The old framework, established back in 1998, used proxy-based criteria that failed to account for modern chemical risks. Specifically, there has been growing concern regarding mineral oil aromatic hydrocarbons (MOAH) and mineral oil saturated hydrocarbons (MOSH) migrating from packaging into the beans themselves. These contaminants often stem from the very materials used to process the sacks, including batching oils, lubricants, and printing inks. By replacing outdated proxy testing with direct MOSH and MOAH measurement, the industry is aligning with modern food safety science. The new specification mandates that every substance used in production must be strictly food-grade to prevent these microscopic intruders from reaching your roaster.
A Borrowed Safety Framework
What makes this shift particularly interesting is that EU regulations do not currently set specific MOAH limits for coffee. Instead, the coffee industry is effectively borrowing the stricter, more rigorous safety framework designed for cocoa. Because the supply chains are so structurally similar, this provides an essential interim standard while dedicated coffee rules are developed. This isn’t just about technical compliance; it addresses a documented reality where jute sacking and storage conditions serve as primary entry points for contamination.
While this change won’t immediately alter the flavor of your morning espresso, it represents a vital step toward true traceability. For an industry built on the pursuit of purity from crop to cup, cleaning up the literal fabric of the supply chain is an overdue necessity. Ensuring the integrity of the sack is as important as protecting the integrity of the bean.
Do you think packaging transparency should be a higher priority for specialty coffee importers?
Questions & Answers
What are MOSH and MOAH in coffee packaging?
MOSH and MOAH refer to mineral oil saturated hydrocarbons and mineral oil aromatic hydrocarbons that can migrate from packaging into coffee beans. These contaminants typically originate from materials used during the production of jute sacks, such as batching oils, lubricants, and printing inks. By transitioning from outdated proxy testing to direct measurement of these specific substances, the industry is better able to identify and prevent chemical risks that threaten the purity of green coffee during transport.
Why is the coffee industry using cocoa safety standards for jute sacks?
The coffee industry is adopting cocoa safety frameworks because the supply chains for both commodities are structurally similar. Since current EU regulations do not set specific MOAH limits for coffee, borrowing the more rigorous standards used for cocoa provides an essential interim solution. This move allows the industry to implement high-level protections against contamination while dedicated coffee rules are still being developed, ensuring that jute sacking does not serve as a primary entry point for pollutants.
How do the new industry standards prevent contamination in jute sacks?
The new standards prevent contamination by replacing outdated proxy-based criteria with direct measurements of MOSH and MOAH levels. This shift ensures that all substances used during the manufacturing process, including oils and inks, must meet strict food-grade specifications to avoid migrating into the coffee beans. By mandating these higher technical requirements, the European Coffee Federation and the European Cocoa Association are addressing structural flaws in the packaging that have existed for nearly thirty years.
How does jute sack contamination affect the coffee supply chain?
Jute sack contamination acts as a primary entry point for chemical intruders like mineral oils to reach green coffee beans during storage and transit. While these contaminants might not immediately alter the flavor profile of a finished espresso, they compromise the overall integrity and traceability of the product. Addressing these risks by cleaning up the fabric of the supply chain is a vital step toward ensuring purity from the crop all the way to the final cup.
Originally reported by Barista Magazine.

