Heinz Real Mayonnaise Single-Serve Units Recalled Over Undeclared Mustard 2026

The Canadian Food Inspection Agency has classified a new food recall as Class 3, its lowest risk category, after Kraft Heinz Canada ULC pulled single-serve Heinz Real Mayonnaise units from the market due to an undeclared mustard allergen. The recall, dated 2026-09-14 and published on 2026-09-17, applies to product distributed to hotels, restaurants and institutions across ten provinces.

Unlike many recalls aimed directly at grocery shoppers, this one targets the foodservice supply chain. The affected mayonnaise portion packs were shipped to commercial kitchens, catering operations and institutional cafeterias rather than being sold individually on retail shelves, meaning most consumers would only encounter the product if they were served condiments at an affected establishment.

Recalled Products at a Glance

Two related listings are named in the CFIA notice. The first is ‘Heinz Real Mayonnaise’ in the 12.5 ml single-serve format, listed with no UPC or code information provided. The second is described as ‘Heinz Mayonnaise’ packaged as a 6.25 L case containing 500 individual 12.5 ml cups, carrying UPC 5 7000 0667200 and two best-before dates: 2027/3/27 and 2027/3/28.

• Brand: Heinz
• Product: Real Mayonnaise / Mayonnaise (single-serve cups)
• Sizes: 12.5 ml individual units; 6.25 L case of 500 x 12.5 ml
• Best Before dates: 2027/3/27 and 2027/3/28

What Triggered the Recall

The issue centers on an undeclared allergen. According to the CFIA listing, the affected mayonnaise contains mustard that was not declared on the product labelling. Mustard is one of the priority allergens tracked under Canadian food safety rules, and its presence in a product without disclosure can pose a serious risk to individuals with mustard allergies or sensitivities, who rely on accurate labelling to avoid exposure.

For most people, an undeclared trace of mustard in mayonnaise would go unnoticed. But for someone with a diagnosed mustard allergy, even a small, unlabelled amount can trigger reactions ranging from mild irritation to more serious allergic responses, which is why regulators treat allergen mislabelling as an automatic recall trigger regardless of overall recall class.

Who Is Affected?

The recall’s distribution footprint spans Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, Quebec and Saskatchewan — effectively nationwide coverage outside the territories. The stated audience is hotels, restaurants and institutions, meaning the recall was issued to the foodservice sector rather than to individual retail buyers.

Operators who received bulk cases of Heinz single-serve mayonnaise cups for use in dining rooms, banquet service or packed meals are the primary group that needs to check their inventory against the listed sizes, UPC and best-before dates.

What Consumers Need to Do Now

Businesses and institutions holding the affected product should not use, sell, serve or distribute it. Any remaining stock matching the described sizes, UPC or best-before codes should be set aside and not put out for customers or guests until further guidance is received from the supplier or CFIA.

Consumers who dined at an affected establishment and are concerned about a mustard allergy exposure are advised to speak with a healthcare provider if they experienced any reaction. Anyone with questions about specific inventory or product handling can contact Kraft Heinz Canada ULC directly, or reach CFIA’s public enquiries line for general guidance on the recall.

From the Agency

The CFIA notice, filed under identification number RA-82641 and CFIA reference 17548, categorizes the issue simply as ‘Food – Allergen – Mustard’ with an instruction to affected operators: do not use, sell, serve or distribute the products. The agency lists Kraft Heinz Canada ULC as the recalling firm and the Canadian Food Inspection Agency as the publishing authority.

For public questions, CFIA can be reached at 1-613-773-2342 or by email at information@inspection.gc.ca. Media enquiries are directed to 613-773-6600 or cfia.media.acia@inspection.gc.ca. The agency has not indicated any illnesses linked to the recall at the time of publication.