Rewe Regional Bierschinken warning after labeling error omits mustard allergen

German food-warning authorities have issued an alert for 100-gram packs of Rewe Regional Bierschinken after a labeling mix-up left mustard undeclared.

The warning applies to packs produced by Thüringer Landstolz Fleisch- und Wurstwaren Schmalkalden GmbH with a best-before date of June 26, 2026 and batch number 20260609.

According to lebensmittelwarnung.de, the product was sold with the wrong back label. That label belonged to a different item and did not list mustard, even though mustard is present in the Bierschinken.

People with a mustard allergy should not eat the product. The warning says anyone who has already eaten it and develops symptoms or suspects an allergic reaction should seek medical attention.

What consumers should know

The warning is limited to the specific 100-gram Rewe Regional Bierschinken packs identified by the stated best-before date and batch number.

The public-health concern is the undeclared allergen. Even small exposures can trigger serious reactions in sensitive people, which is why food-warning authorities move quickly on labeling errors like this.

WELT first reported the official warning on June 22, 2026, and a later check found no material change to the notice.