A Cyclospora outbreak has sickened 1,644 people and hospitalized 94 across five states, federal officials announced July 21, tying the illnesses to shredded iceberg lettuce served at Taco Bell and traced to Taylor Farms de Mexico. Recalled products reached 27 states, and the parasite driving the outbreak cannot be reliably washed off at home—yet the people who study foodborne illness for a living aren’t clearing out their crisper drawers.
Instead, food safety experts are making targeted, surprisingly modest adjustments to how they shop and eat while the investigation continues. Their collective playbook offers a window into how professionals calibrate risk when the system that supplies 150 million daily servings of leafy greens in the U.S. springs a leak.
Targeted Avoidance, Not Blanket Bans
Donald Schaffner, a food microbiology professor at Rutgers University, hasn’t altered his eating habits at all. “I had a salad last night and the night before, and I’ll have a salad tonight,” he says. His approach is surgical: avoid products named in an active recall, ignore the rest. “I don’t worry about it,” he says of lettuce outside the recall scope.
Frank Yiannas, who served as the FDA’s deputy commissioner for food policy and response from 2018 to 2023 and authored “Food Safety Culture,” takes the same line. He’s eaten romaine salad two days running. He notes that Americans safely consume more than 150 million servings of leafy greens every day, a statistic that puts even a 1,600-person outbreak in context.
Barbara Kowalcyk, director of the Institute of Food Safety and Nutrition Security at George Washington University, frames the decision as personal risk math. She’s comfortable ordering restaurant salads—likely made with bagged lettuce—because she’s healthy and not immunocompromised. “I know the risks I’m taking,” she says. The calculation shifts for young children, pregnant women, older adults, and anyone with a weakened immune system, all of whom face more serious foodborne illness outcomes.
Why Food Safety Experts Choose Whole Heads Over Bagged Greens
The lettuce recall has reinforced a preference several experts already held: buy whole heads, not pre-bagged, pre-washed, or kit salads. Bill Marler, an attorney who represents several people suing over the current Cyclospora outbreak, stopped buying prepared salads years ago. “I’m not a fan of bagged or boxed salads or pre-made kits,” he says, because they combine greens from multiple sources. “You’re ceding responsibility to somebody else in a large factory.”
Marler buys whole heads, strips the outer leaves, and washes the rest under running water—a method also recommended by the Michigan Department of Health and Human Services, the state hit hardest by the outbreak. He traces his caution to the 2006 E. coli outbreak linked to bagged spinach, when contamination thought to originate from wild pigs spread nationally after spinach from across a field was harvested, chopped, washed, and packaged together. “The pigs didn’t poop on everything,” Marler says. Once mixed, a localized problem became nationwide. “Convenience just isn’t worth the risk.”
Several food safety experts have reached the same conclusion. Kowalcyk also buys whole heads, washes thoroughly under running water, and discards bruised or damaged outer leaves. Broken leaves are more vulnerable, she explains, because “that’s how the bacteria gets inside.”
Even “Pre-Washed” Gets a Second Rinse
Gerardo Lopez, a food safety professor at the University of Arizona, doesn’t trust the “pre-washed” label. He still rinses bagged greens under running water in a colander before serving. “Just because something says pre-washed doesn’t mean [it’s safe],” he says, citing the potential for cross-contamination between processing and the kitchen.
Knowing the Source
Darin Detwiler, an associate teaching professor of food policy at Northeastern University and author of “Food Safety: Past, Present, and Predictions,” applies a simple test at farmers markets: he asks where produce was grown and how recently it was harvested. If a vendor sourced from a wholesaler or middleman rather than a nearby farm, he keeps walking.
At the grocery store, Detwiler urges consumers to look past the brand on the package, which isn’t always the company that grew the produce. During this outbreak, many assumed they were unaffected because they didn’t see “Taylor Farms” in their refrigerator—even though the same grower supplies produce sold under multiple labels. “I would rather have an imperfect-looking tomato that was grown within 25 miles than a perfect tomato at the grocery store that I don’t know where it came from,” he says. His bottom line for uncertain shoppers: “If in doubt, throw it out.”
What Happens Next
The CDC and FDA have not identified additional sources beyond the Taylor Farms de Mexico lettuce tied to Taco Bell, and public-health communication has been inconsistent—leaving consumers to make their own calls in the produce aisle. Watch for the investigation to widen as case counts climb and traceback continues, and for scrutiny to fall on the centralized processing model that turns a single contaminated field into a multi-state event. As the lettuce recall continues, the experts’ shared message is less about fear and more about proximity: buy whole, wash thoroughly, know the source, and skip the bag when you can.
— Isabella Morales, food desk, AXO News