How to Store Romaine Lettuce So It Stays Fresh and Crisp

Romaine is a crisp lettuce, prized for its texture and crunch. When you buy it, you want it to stay fresh, not wilt after a few days in the refrigerator. We spoke to produce experts to learn how to store romaine. They agree that its shelf life depends less on luck and more on managing moisture, airflow, and temperature from the moment it comes home. They shared tips on the right packaging, storage, and handling, so a fresh head of romaine will stay crisp for well over a week—and sometimes longer.

How to Store Whole Romaine Lettuce

As with most produce, romaine lasts best if stored whole and uncut.

How Long Whole Romaine Lasts

“When properly handled, a whole, uncut head of romaine can stay fresh and crisp for about seven to 10 days in a home refrigerator,” says Carlo Baldan, group vice president of fresh merchandising at Kroger. “In some cases, it may last up to two weeks, but the texture and flavor typically begin to decline after the first 10 days.”

Bag, Box, or Paper Towels?

Packaging plays a major role in how long romaine lasts. According to Max Teplitski, P.hD, chief science officer at the International Fresh Produce Association, store-bought romaine has an advantage when left as-is. He explains that inside the bag the lettuce is sold in, there's "modified atmosphere" (it's not just air!). "This modified atmosphere is a unique blend of gases (nitrogen, oxygen, CO2 that extends the [romaine's] shelf life.” Leaving it loosely closed in its original bag is the best storage method.

Baldan explains that these methods work because they maintain humidity to prevent wilting while reducing condensation. He cautions against sealing romaine too tightly: “Avoid sealed freezer bags or airtight containers, as they trap moisture and lead to faster decay.”

Loose romaine: If you buy romaine loose, not bagged, Teplitski recommends a different approach: using a clean, airtight container. The container should be large enough that the leaves aren’t compressed, since bruising shortens shelf life.

Before storing loose romaine, trim any damaged or discolored leaves. If there is visible grit or sand, rinse it off under running tap water. Teplitski does not recommend soap, household cleaning agents, bleach, or other solutions, noting that research shows bottled produce washes have mixed effectiveness.

To manage moisture, he recommends placing a clean, dry paper towel on the bottom of the container to wick up any water that may be remaining on the leaves.

Avoid reusable cloth produce bags: Our experts don't recommend them for romaine, because they don’t retain the humidity leafy greens need to stay crisp.

Where to Store Romaine in the Refrigerator

A crisper drawer set to high humidity is your best bet, says Baldan. “This location provides a stable temperature of about 34 to 38 degrees Fahrenheit, reduces water loss, and protects the lettuce from airflow that accelerates dehydration.”

Be sure to store romaine away from raw or undercooked meat, poultry, fish, and eggs to prevent cross-contamination, and in a place where it won’t experience frost damage or frequent temperature swings. Teplitski notes the FDA guidance is that the optimal range is above freezing but below 41 degrees, "since higher temperatures accelerate a decrease in quality."

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Storing Cut Romaine

Although it's nice to have washed and cut romaine at the ready for salads, be aware that its shelf life is significantly shorter.

Drying the leaves thoroughly—using a salad spinner if possible—then storing them in a container lined with paper towels will help them to last better. The container should be loosely covered rather than airtight, and you should replace the damp paper towels as needed.

Teplitski recommends prepping romaine as close to eating time as possible. Once cut, it should be eaten within a couple of hours if left at room temperature, or refrigerated promptly.

How Long Cut Romaine Lasts

"Washed and cut romaine typically lasts two to three days,” Baldan says. With careful handling, he says it can last up to about four days.

Signs Romaine Is Past Its Prime

Before romaine looks visibly spoiled, texture and aroma often change first. Look out for these indications that the romaine should be used up quickly:

• Early signs of decline include “a loss of crispness, dull-colored leaves, browning or pinking on cut edges or ribs, and a mild musty or grassy odor,” says Baldan.
• Romaine naturally contains a white milky sap in its veins. Sometimes, you may see it at the cut end of the stem. "You may also notice it oxidizing or beginning to ‘pink." This pinking is normal, but usually begins to signal that romaine is moving closer to its use-by time," says Teplitski.