Lettuce
Flavour Profile
Lettuce ranges from mild, sweet and watery to green, earthy and gently bitter, depending on the variety. Iceberg is clean, neutral and all about crunch. Cos, also called romaine, has a firmer rib and greener flavour, while butterhead and oak leaf are softer, sweeter and more delicate.
Health Benefits
Lettuce is mostly water and low in kilojoules. It provides vitamin K, which supports normal blood clotting and bone health.
Darker varieties generally provide more provitamin A carotenoids and folate than iceberg. Lettuce also contributes small amounts of fibre and potassium, with the exact levels depending on the variety.
Buying Tips
Choose crisp, vibrant leaves with fresh edges and a clean-looking base.
Iceberg should feel dense and tightly packed. Cos should have firm ribs and upright leaves, while butterhead and loose-leaf varieties naturally have a softer, more open structure.
Storage
Store whole heads in the crisper drawer inside a loose bag or wrapping that reduces moisture loss.
Wash lettuce under cool running water just before using it. Dry separated leaves thoroughly and store them in a covered container with a dry paper towel or clean tea towel to absorb condensation.
Keep lettuce away from ethylene-producing fruit such as apples, bananas and avocados, which can cause reddish-brown spotting and shorten its useful life.
Cooking Uses
Use lettuce raw in salads, sandwiches, burgers, tacos, wraps and lettuce cups. Iceberg delivers cold crunch, while cos stands up well to heavier dressings.
Sturdy varieties such as cos and Little Gem can be grilled or pan-seared. Lettuce can also be gently braised, added to soups or quickly stir-fried.
Forkin Food Theory
Lettuce stays crisp because its cells are filled with water, creating internal pressure that keeps the leaves firm.
Salt draws water from those cells, while acidic dressings gradually soften their structure. Keep the leaves cold and dry, then add the dressing just before serving for maximum crunch.
Wild & Wonderful
Whole heads usually keep longer than pre-cut lettuce because the leaves remain intact and the outer layers help protect everything inside.
Iceberg provides cold crunch, freshness and neutrality. It works beautifully in burgers, wedge salads, chopped salads, tacos and prawn cocktails.
Wilted lettuce can often regain some crispness after a short soak in ice-cold water. Dry it thoroughly and use it straight away.
My gran and grampa always stored iceberg lettuce in a bowl of cold water with a lump of coal. It was a genuine old household trick. The cold water helped keep the lettuce hydrated and crisp, while the coal was traditionally believed to help keep it fresh. It’s a wee bit of family food history from the days when the pantry or larder did much of the work now handled by the fridge.