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10.02.2022 - Foods
Eco-Test January 2022: Flaxseeds contaminated with mineral oils (MOSH/MOAH) and hydrocyanic acid (cyanide)
Öko-Test has tested 20 packets of flaxseeds for contaminants. Only one product scores "very good." Seven more can be recommended with the overall rating "good."
Ten products contain elevated levels of mineral oils. Both saturated mineral oil hydrocarbons (MOSH) and aromatic mineral oil hydrocarbons (MOAH) have been detected. The residues can be transferred to the flaxseeds through packaging or machine lubricants.
Moreover, the partially high hydrocyanic acid content was criticized. There is currently no legal limit for hydrocyanic acid in flaxseeds. At the EU level, a maximum level of 150 milligrams per kilogram is currently being discussed. Based on this, the content in some products is rated as "elevated."
Flaxseeds naturally contain cyanogenic glycosides in relatively high concentrations, from which cyanide is released upon chewing and digestion. Cyanide is a salt of hydrocyanic acid. If a sufficiently high dose is ingested, it can lead to acute poisoning by blocking energy production. Therefore, it is recommended that an adult should not eat more than 15 grams of flaxseeds per meal - based on three meals per day. However, the safety of raw flaxseeds for children is unclear. Öko-Test criticizes several products for lacking packaging information on a maximum intake quantity and/or information that flaxseeds are not suitable for toddlers at all.
Questions and answers about MOSH/MOAH in food can be found at the following links:
Further information on cyanide poisoning can be found in the statement from the BfR: Link to statement
In our Tentamus laboratories, we conduct tests regularly. We provide you with quick and reliable results.
Our customer advisors are happy to assist you with any questions.
Sources: Öko-Test January issue