How Long to Cook Lentils

Preparation

How to Prepare Lentils Before Cooking

Red lentils: No soaking required. Rinse thoroughly under cold running water until the water runs clear. They cook quickly and disintegrate naturally, making them ideal for soups, dals, and sauces.

Green lentils: No soaking required. Rinse under cold water and pick out any debris. They retain their shape during cooking, making them perfect for salads and side dishes.

Brown lentils: Soaking is recommended. Cover with cold water and leave for 3 to 6 hours, then drain. Soaking reduces cooking time and produces a more uniform, tender texture. Without soaking, brown lentils can take up to 60 minutes and the texture can be uneven.

Method

How to Cook Lentils Step by Step

1. Rinse red or green lentils under cold water. For brown lentils, soak in cold water for 3 to 6 hours and drain.
2. Bring water to a boil (2 cups of water per cup of lentils).
3. Add the lentils to the boiling water.
4. Add aromatics: a bay leaf, a sprig of rosemary or sage, a stalk of celery, and a tablespoon of olive oil.
5. Skim foam that rises in the first few minutes.
6. Reduce to a steady simmer and cook with the lid slightly ajar.
7. Cook red lentils 15 to 20 minutes, green lentils 25 to 30 minutes, brown lentils 40 to 50 minutes.
8. In the last 2 to 3 minutes, add salt (1 to 2 teaspoons per liter). Optionally add a dash of soy sauce.
9. Check doneness and drain if needed (some cooking liquid may be absorbed or desired for the dish).

Cooking chart

Lentils Cooking Time Chart

Doneness

How to Know When Lentils Are Done

Press a lentil between your fingers — it should yield easily with no hard or gritty center. For red lentils used in soups and dal, they are ready when they have fully dissolved into a thick, porridge-like consistency. For green lentils in salads, they should be tender throughout but still holding their disc shape. For brown lentils in stews, they should be soft but not mushy.

Watch red lentils closely — they go from perfectly done to overcooked and mushy very quickly. Check at 15 minutes and remove from heat as soon as they reach your desired consistency.

Seasoning

Best Seasonings for Cooked Lentils

Lentils have a mild, earthy flavor that pairs well with bold aromatics. During cooking, add bay leaf, rosemary, sage, thyme, celery, and a generous glug of olive oil. A splash of soy sauce near the end adds savory depth to any variety. After cooking, season generously with lemon juice — it brightens lentils dramatically. Cumin, coriander, smoked paprika, and turmeric work particularly well with red lentils in Indian-style dals. For French-style preparations, Dijon mustard and red wine vinegar transform green lentils into a classic side.

Avoid this

Common Mistakes

• Adding salt too early — particularly for green and brown lentils, this toughens the skins and slows cooking significantly.
• Overcooking red lentils — they dissolve fast; check frequently from 12 minutes onward.
• Not rinsing — lentils often carry field dust and debris; always rinse thoroughly before cooking.
• Using too little water — lentils absorb a surprising amount; the 2:1 water-to-lentil ratio is the minimum. Add more if needed.
• Adding acidic ingredients too early — tomatoes, vinegar, or lemon added before the lentils are almost done will firm the skins and extend cooking time.

Serving

What to Serve With Cooked Lentils

Red lentils are perfect for thick soups, Indian-style dals, and creamy sauces over rice or flatbread. Green lentils are excellent tossed warm with mustard vinaigrette, crispy bacon, and poached eggs (salade de lentilles), or served cold in composed salads. Brown lentils work in hearty stews paired with root vegetables and sausage, or as a base for grain bowls. All lentils pair beautifully with caramelized onion, which brings a sweet counterpoint to their earthiness.

Recipe ideas

Lentil Recipe Ideas

• Red lentil dalSimmer red lentils with coconut milk, turmeric, cumin, and ginger. Finish with a tarka of mustard seeds and curry leaves in ghee.
• French green lentil saladCook green lentils until just tender, dress with Dijon, red wine vinegar, olive oil, shallot, and parsley while warm.
• Lentil soupBlend cooked red lentils with fried onion, garlic, cumin, and vegetable broth. Finish with lemon juice and smoked paprika oil.
• Brown lentil stewBraise brown lentils with smoked sausage, tomato, carrot, and bay leaf for a deeply satisfying cold-weather dish.

Leftovers

Storing and Reheating Cooked Lentils

Cooked lentils keep refrigerated for up to 4 days. Store with a little cooking liquid to prevent them from drying out. They freeze well for up to 3 months. Reheat gently with a splash of water or broth — they thicken considerably as they cool. Red lentil dishes reheat particularly well and often taste better the next day as the flavors develop.

Tools

Useful Tools for Cooking Lentils

• Medium saucepanLentils do not expand as dramatically as beans; a medium pot is usually sufficient.
• Fine-mesh sieveFor rinsing lentils thoroughly without losing them down the drain.
• TimerEspecially important for red lentils, which overcook quickly.
• Immersion blenderFor making smooth lentil soups and dals directly in the pot.

Keep cooking

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