That distinctive gold foil wrapper has been a staple in American refrigerators for years. But between February 2023 and August 2024, Kerrygold found itself defending not just its reputation, but its very definition of “pure” when consumer Carolyn Winans filed a class action lawsuit alleging the butter’s packaging contained harmful PFAS chemicals.
The Kerrygold butter lawsuit wasn’t just another food industry legal squabble. It struck at something deeper—the trust health-conscious consumers place in premium brands that promise purity.
When “Pure” Gets Complicated
The case centered on PFAS, or per- and polyfluoroalkyl substances, synthetic chemicals known as “forever chemicals” because they persist in the environment and human body. Winans argued that labeling butter as “Pure Irish Butter” was misleading when the packaging itself contained these substances.
Here’s what made the case particularly thorny: Kerrygold butter was pulled from shelves in New York and California after both states passed laws prohibiting PFAS in food packaging. The company issued a recall, changed its packaging, and the products returned to stores. But the legal battle was just beginning.
In April 2024, federal judge Frederic Block ruled the case could proceed, rejecting Kerrygold’s motion to dismiss. His reasoning? The court couldn’t conclude “as a matter of law, that the presence of PFAS in butter is immaterial to a reasonable consumer.”
That statement matters. It acknowledged what many Americans already knew—when you’re paying premium prices for butter marketed as pure, you expect it to be free from synthetic chemicals linked to thyroid disorders, immune system problems, and various cancers.
The Grass Wasn’t Always Greener
But this wasn’t Kerrygold’s first rodeo with American courtrooms. Back in 2018, San Diego real estate executive Dyami Myers-Taylor filed a separate class action lawsuit claiming Kerrygold’s “grass-fed cows” marketing was misleading because Irish cows eat grains, soy, and corn during certain times of the year.
Myers-Taylor alleged he paid premium prices from 2014 through 2018 based on understanding the cows ate only grass, and that he wouldn’t have purchased the products had he known otherwise. The lawsuit was voluntarily dismissed in March 2019, but it had already sent ripples through the butter-buying community.
One frustrated consumer commented on the lawsuit news: “I’ve been buying Kerrygold butter (8oz foil pack) since it’s availability in Pennsylvania… My family goes through at least 4-8oz (2lbs) per week. The current best price is $5.49/8 oz… Quite deceptive and disappointing to say the least!”
The Resolution Nobody Saw Coming
The 2023 PFAS lawsuit ended in August 2024 when both parties filed for dismissal with prejudice, with each side paying their own attorney fees. Court documents never mentioned a settlement agreement, leaving consumers wondering what actually transpired behind closed doors.
The lack of transparency frustrated many. When you’ve built a brand on Irish pastoral imagery and promises of purity, a quiet dismissal doesn’t exactly restore consumer confidence.
What This Means for Your Shopping Cart
The Kerrygold butter lawsuit saga highlights a fundamental tension in modern food marketing. Companies operating across international borders face different regulations—what passes muster under EU agricultural standards doesn’t always align with increasingly stringent U.S. state laws.
Scientists have linked PFAS exposure to hormone disruption, various cancers, reproductive problems, and fetal developmental issues. These aren’t abstract risks for consumers trying to make healthy choices for their families.
The lawsuits also exposed how terms like “grass-fed,” “pure,” and “natural” exist in a regulatory gray zone. Without federal definitions, companies have wiggle room to interpret these words differently than consumers might expect.
The Bigger Picture
Whether you’re team Kerrygold or have switched to alternatives, these lawsuits reveal broader issues in food labeling and marketing. They demonstrate that premium pricing creates premium expectations—and when those expectations aren’t met, consumers are increasingly willing to take legal action.
The butter market has responded. More brands now specify “100% grass-fed” rather than just “grass-fed.” Packaging transparency has improved. Some companies have pursued certification from organizations like the American Grassfed Association to remove ambiguity.
For now, Kerrygold remains on store shelves with updated packaging that complies with state regulations. The legal chapters may have closed, but the lessons for food manufacturers—and consumers—remain open for discussion.
Frequently Asked Questions About the Kerrygold Butter Lawsuit
Was there a settlement in the Kerrygold butter lawsuit?
The case was dismissed in August 2024 with both parties paying their own attorney fees, but court documents never explicitly mentioned a settlement agreement.
Can I still buy Kerrygold butter?
Yes. After being pulled from shelves in New York and California, Kerrygold made changes to its packaging to comply with state regulations and the products returned to stores.
What are PFAS or “forever chemicals”?
PFAS are synthetic, man-made chemicals that persist and accumulate over time, and are harmful even at very low levels, with links to thyroid disorders, immunotoxicity, and various cancers.
Is Kerrygold actually made from grass-fed cows?
Irish dairy cows primarily eat grass but also consume grains or soy during bad weather or when grass yields are poor. This practice is common among many brands labeled as “grass-fed.”
What happened to the 2018 grass-fed lawsuit?
That lawsuit was voluntarily dismissed in March 2019.