Ranch may be America's favorite dip, but TSA would prefer travelers not treat it like a carry-on essential.

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For the millions of international soccer fans traveling to the United States for this summer’s FIFA World Cup, the Transportation Security Administration has an unusual reminder before the trip home: If you've developed a taste for ranch dressing, don't try to carry a full-size bottle through airport security.

In a tongue-in-cheek social media post shared on the tournament’s opening day, the TSA reminded travelers that ranch dressing is subject to the agency's long-standing liquids restrictions.

"If you’re visiting for a very large sporting event & you happen to discover RANCH while you're here… pls pack it in your CHECKED BAG on the way home," the agency posted on Threads on June 11.

The warning quickly snowballed into one of the agency's more memorable social media campaigns. As commenters joked about America's favorite condiment, TSA doubled down with follow-up posts, including, "Ok please avoid chugging your ranch outside security the airlines will check it for you," and, "days since the last airport ranch incident: 0."

The agency later rounded up the saga in an Instagram post on June 17, writing: "Who knew dip-lomacy could be achieved through addressing the obvious: ranch is the king of condiments..." The caption concluded with a practical reminder: "Are you kicking around the idea of flying home with your favorite dip? If you're traveling within the U.S., make sure to keep your carry-on sauces to 3.4oz or less and place any larger containers in your checked bags."

Even Kraft got in on the joke. On June 18, the food company teased "TSA-Compliant Ranch" on Instagram—a travel-size serving designed to fit within the agency's carry-on liquids limit.