
Milk might seem harmless to most shoppers, but for millions with dairy allergies, a splash of undeclared milk in food can mean serious health risks. And in the world of food recalls? Milk is the #1 undeclared allergen that keeps making headlines.
According to both the FDA and USDA’s FSIS, undeclared milk is the leading trigger for allergen-related recalls in the U.S. year after year—often accounting for over 40% of all allergen recalls. So what makes milk such a repeat offender?
Let’s break down the reasons and what manufacturers need to watch for.
What Makes Milk So Easy to Miss (But Hard to Ignore)
Milk is used in everything from chocolate to seasoning blends. And even when it’s not a main ingredient, trace amounts can sneak in through:
- Shared processing equipment
- Incorrect or outdated labeling
- Changes in ingredients or suppliers
- Miscommunications with co-packers or distributors
Unlike nuts or shellfish, milk can be present in powdered form, processed flavors, or even in additives like casein or whey—making it harder to spot unless there’s robust allergen management.
A Matter of Public Health—and Trust
The FDA requires that all major allergens, including milk, be clearly declared on packaging. Failing to do so can lead to legal consequences, consumer health emergencies, and costly recalls.
For those with milk allergies, accidental exposure can trigger hives, digestive distress, or even anaphylaxis. That’s why clear labeling and rigorous testing are more than just regulatory checkboxes: they’re lifelines.
Real Recall Examples

Here are just a few recent examples of undeclared milk causing recalls:
- Chocolate products where milk-containing chocolate was swapped into packaging meant for dairy-free varieties.
- Prepared meals and sauces that had ingredient substitutions but didn’t update the label.
- Snack mixes or coated items like nonpareils or trail mixes processed on shared equipment.
Cases of undeclared milk food recalls include:
- On June 20, 2025, Lipari Foods issued a voluntary recall of its JLM Branded Dark Chocolate Nonpareils. These cocoa-dotted delights were found to contain undeclared milk, posing a serious risk for those with milk allergies.
- On June 17, 2025, Weaver Nut Company, Inc. issued a voluntary recall of several lots of its semi-sweet chocolate nonpareils due to an undeclared milk allergen.
What Manufacturers Can Do to Prevent It
Preventing undeclared milk recalls starts with intentional safety measures:
- Thorough allergen control plans following FSMA guidelines
- Dedicated equipment or validated cleaning between runs
- Regular testing and verification of milk proteins
- Label reconciliation with actual ingredients used
- Tight supplier communication and documentation
- Employee training on allergen risks and compliance
The USDA’s Allergen Control Guide and the FDA’s Food Code are great starting points for building strong allergen programs.
Why Milk Matters to Your Brand
Milk-related recalls don’t just affect consumers—they impact your brand equity, retailer relationships, and bottom line. In an industry built on trust, one misstep can cost far more than just the recall logistics.
Want a broader look at how undeclared allergens impact the entire industry? Don’t miss our full breakdown in the Evergreen Library’s pillar article.
Final Sip: Stay Sharp with Dairy Declaration
Milk’s versatility in food manufacturing is exactly what makes it so dangerous when unlabeled. With so many potential entry points for contamination, manufacturers need to go beyond minimum compliance and treat allergen safety as a core part of their QA strategy.
Because in today’s food system, clarity isn’t optional—it’s critical.
Need help navigating allergen compliance or preventing costly recalls? Talk to the team at Source86—we’re here to support your brand with real-time insights, ingredient transparency, and supply chain expertise.









