Skip to content

Should I Avoid All Romaine Lettuce?

3 min read

According to the Centers for Disease Control and Prevention (CDC), millions of servings of leafy greens are consumed safely every day, but this fact is often overshadowed by periodic outbreaks. Given its history with E. coli contamination, the question, "Should I avoid all romaine lettuce?" remains a valid concern for many consumers.

Quick Summary

This article addresses the safety of consuming romaine lettuce, detailing the CDC's guidance, the risks associated with contamination, and the effective safety measures consumers can take. It also provides an overview of recalls and offers safe, nutritious alternatives to romaine lettuce.

Key Points

  • Check for Recalls: Unless there is an active recall from health authorities like the CDC, romaine lettuce is generally considered safe to eat.

  • Choose Whole Heads: Whole heads of romaine lettuce are typically safer than pre-cut or bagged versions, as the processing of bagged lettuce increases the risk of contamination.

  • Wash Thoroughly: Always wash whole heads of romaine under running water just before consumption, but do not wash products labeled "triple-washed".

  • Avoid Cross-Contamination: Keep romaine lettuce and other produce separate from raw meats and other potential sources of contamination during storage and preparation.

  • Consider Alternatives: If you are concerned about risk, especially during an active outbreak, safe and nutritious alternatives like spinach, kale, or butter lettuce are available.

  • Stay Informed: Pay attention to advisories and labels regarding the growing region, particularly during an outbreak.

In This Article

Understanding the Risk: Why Romaine Gets a Bad Rap

Romaine lettuce has a reputation for being involved in foodborne illness outbreaks, primarily linked to E. coli O157:H7. These outbreaks often grab headlines and lead to widespread recalls, causing public concern. However, it's crucial to understand the context behind these incidents.

Contamination can occur at various stages, from the farm where the lettuce is grown to the processing and handling facilities. Environmental factors, such as proximity to cattle feedlots, have been identified as potential sources of contamination. Furthermore, the physical properties of the lettuce itself—like the natural openings in the leaves—can make it difficult to remove pathogens through washing alone. This risk is compounded by the fact that romaine is most often consumed raw.

The Elevated Risk of Pre-Cut and Bagged Romaine

While whole heads of romaine can be contaminated, health experts have noted an increased risk associated with pre-cut and bagged lettuce products. Here's why:

  • Cellular Damage: The chopping and shredding process creates damaged leaf edges, which release juices. These juices can provide a nutrient source for bacteria, allowing pathogens like E. coli to multiply more rapidly. One study found pathogen growth was over 10 times higher on shredded lettuce compared to whole leaves.
  • Cross-Contamination Potential: In centralized processing facilities, large batches of lettuce are washed and processed together. If a single head of lettuce is contaminated, the bacteria can spread to the entire lot.
  • Moisture and Time: Excess moisture and prolonged storage time in a sealed bag can further encourage bacterial growth. This is why bagged lettuce is classified as a "Potentially Hazardous Food" by the FDA.

Can Washing Alone Make Romaine Safe?

Experts agree that while washing produce is a crucial step in food safety, it is not a foolproof method for eliminating bacteria like E. coli. The Centers for Disease Control and Prevention (CDC) provides specific guidance regarding washing:

  • Thorough Washing: Wash whole heads of lettuce under clean, running water, removing any outer or damaged leaves.
  • Do Not Re-wash Pre-washed: If a product is labeled "triple washed" or "ready-to-eat," do not wash it again. Re-washing can introduce contaminants from your kitchen sink, cutting board, or hands.
  • No Soap or Bleach: Never wash lettuce with soap, detergent, or bleach, as these products are not safe for consumption and can cause harm.

Comparison of Romaine vs. Other Leafy Greens

Feature Romaine Lettuce Kale Spinach Iceberg Lettuce
Nutritional Value High in Vitamins A and K, and Folate. Exceptionally high in Vitamins A, K, C, and fiber. Nutrient-dense, rich in Vitamins K, A, and C, and minerals like iron and potassium. Low nutritional value, mostly water.
Flavor Mild, slightly sweet flavor. Earthy, often slightly bitter. Mild, versatile, can be eaten raw or cooked. Very mild, almost flavorless.
Texture Crunchy, with sturdy leaves. Chewy and fibrous, especially when raw. Tender leaves, wilts easily. Exceptionally crisp and crunchy.
Food Safety Risk Historically prone to E. coli outbreaks. Generally lower risk profile than bagged romaine, especially cooked. Vulnerable to bacterial contamination, but less famously than romaine. Lower risk due to compact head, less surface area exposure.

What to Do During a Romaine Recall

When a recall or public health advisory is issued, it's essential to follow the instructions from health authorities like the CDC and FDA. A past outbreak linked to specific growing regions led to consumer advisories to avoid all romaine lettuce from those areas. In such cases, if you can't determine the source of your lettuce, the safest course of action is to discard it. Always sanitize any refrigerator drawers or shelves that stored the recalled lettuce.

Conclusion: Making an Informed Choice

The decision of whether to eat romaine lettuce ultimately comes down to personal risk assessment and adherence to safe handling procedures. While millions of servings are consumed safely, the history of outbreaks, particularly with pre-cut products, warrants caution. By staying informed about potential recalls, opting for whole heads over bagged versions, and practicing meticulous food hygiene, consumers can significantly mitigate their risk. For those in higher-risk groups, such as the elderly, young children, or the immunocompromised, or for anyone who prefers to be extra cautious, numerous nutritious alternatives exist, including spinach, kale, and butter lettuce. Always prioritize food safety, and if in doubt, follow the mantra: "When in doubt, throw it out".

Authoritative Link:

Frequently Asked Questions

Yes, pre-cut and bagged romaine lettuce products are considered riskier. The cutting process creates more opportunities for bacteria to enter the leaves, and the processing environment can increase the risk of cross-contamination.

While soaking produce in a vinegar-and-water solution may help reduce some bacteria, it is not guaranteed to eliminate all pathogens like E. coli. The most effective method is thorough rinsing under running water and following all recall advisories.

You should immediately throw it away, even if you have not become sick. Afterward, wash and sanitize any surfaces, drawers, or containers that the lettuce may have touched.

The susceptibility of romaine can be attributed to its growing environment, often near cattle operations, and its leafy structure, which can protect bacteria from being easily washed away. It is also typically eaten raw, which means it is not cooked to kill potential pathogens.

Unfortunately, contaminated romaine lettuce may not look, smell, or taste different from safe lettuce. The only way to know for sure is to check official recall notices from the CDC and FDA.

Excellent and safe alternatives include spinach, kale, butter lettuce, red or green leaf lettuce, and arugula. Many of these options, especially darker greens, are also more nutrient-dense.

Store romaine in the crisper drawer, wrapped in a paper towel to absorb excess moisture. Keep it away from ethylene-producing fruits and vegetables that can speed up spoilage. Avoid washing it until you are ready to use it.

Yes, cooking romaine lettuce can effectively kill bacteria like E. coli. For those in high-risk groups, cooking greens like spinach or kale is a safer option than eating them raw.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.