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23.06.2025 - Foods

June 20, 2025 - Flour with Shiga toxin-producing Escherichia coli (STEC)

Shortly before Pentecost, a warning was issued against consuming a flour that may be contaminated with Shiga toxin-producing Escherichia coli (STEC). These pathogens can lead to severe, feverish, and bloody gastrointestinal illnesses – especially when flour is used in foods that are not sufficiently cooked.

The risk increases particularly with homemade products, where basic heating rules are not always followed. Occasionally consuming raw dough can also be a pathway for pathogens. The use of a kitchen thermometer and adherence to basic hygiene standards thus become more important – even in private households.

Official food monitoring and federal authorities such as the BfR and the BVL are also increasingly considering this topic as relevant.

The consequences are:

more intensive sampling of flours and products made from them,
greater consideration of STEC during official examinations,
as well as increased attention in risk communication.
Quick and reliable STEC analysis at BAV Institute

The BAV Institute offers powerful, validated methods for detecting Shiga toxin-producing E. coli (STEC) – including rapid methods that enable quick assessment of products. Our customer advisors are happy to assist you with questions regarding sampling, analysis, and preventive measures.

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