Lettuce is a staple ingredient for salads now that it is picnic and barbecue season, but it is frustrating when it browns and wilts before its time. Leafy greens often spoil before their expiration date as they have a high water content, which causes them to lose moisture quickly after being harvested.
Unlike other vegetables, lettuce does not have a thick skin to protect it, so it dries out faster and easily becomes contaminated with bacteria, which also further causes it to decay. However, Dan Holt, a produce expert from Hitchcock Farms has shared a very simple way to keep lettuce fresh for up to a month longer is to store it with tin foil.
Dan said: “If you’ve ever wondered ‘Does wrapping lettuce in foil keep it fresh?’ you have to try this trick. It can keep romaine lettuce crisp for as long as 30 days.
“Simply wrap individual heads or hearts tightly in aluminium foil. Remove as many crispy leaves as you need for a recipe, and re-bundle the remaining lettuce.”
Tin foil is made of material that can help the lettuce retain more of its moisture while still allowing enough airflow to stop condensation, which can create a damp environment that encourages mould.
It will keep lettuce hydrated so it does not dry out but will also act as a barrier to protect it mould spores, bacteria and any ethylene gas lingering in the fridge.
Ethylene gas is produced by certain fruits and vegetables to help them ripen and develop flavour, but when too much of it builds up in a closed environment, it can cause produce like lettuce to spoil.
How to store lettuce properly to keep it fresh
All you need to do is first wash the lettuce leaves in cold water. This helps remove any dirt and bacteria, which can accelerate spoilage.
Then, dry the lettuce with a salad spinner or you can pat it dry with a clean tea towel. Make sure to dry it thoroughly and that there are no water droplets on the leaves.
Spread out your tin foil, add some paper towels, and then wrap the lettuce loosely in the foil.
Lettuce naturally releases a lot of water, and the paper towels help absorb the excess moisture, keeping the humidity at the right level to prevent it from drying out or becoming mouldy.
Store lettuce in the crisper drawer, and it should stay fresh for at least a month. However, if it does starts to shrivel up it is actually quite easy to keep it from spoiling.
Dan said: “Before you throw out that sad head, try rescuing it with an ice-water bath. Completely submerge the lettuce, leave it in the water for five minutes, and then pat dry.
“This is often enough to shock the leaves back into shape so that you can use the lettuce for a few more dishes.”
You will be able to enjoy a fresh, crisp salad whenever you want, making the most of the sunny weather without worrying about your greens spoiling in your fridge and ruining a picnic.
