Ancient Nutra Wellness Team · 8 September 2026 · 6 min read

Kottamalli, Done Properly: The Coriander Brew for a Scratchy Day

By the Ancient Nutra Editorial Team

Key takeaways

Kottamalli is a coriander seed brew, and the technique matters more than the shopping list: toast the seed, crack it, then simmer it covered for 15 to 20 minutes instead of boiling it hard in an open pot.
Coriander seed is Coriandrum sativum, and it is not a Sri Lankan crop. India grows most of the world's supply, so the seed in a Sri Lankan kitchen is almost always imported.
In a trial of 30 people with a cold or flu, a hot drink gave immediate relief from runny nose, cough, sneezing, sore throat, chilliness and tiredness, while the same drink at room temperature relieved only the first three. That is comfort, not a cure.
No human trial shows that coriander seed or ginger prevents or shortens an infection. Kottamalli is worth making because it is warm, cheap and pleasant to drink, not because it fights a virus.

Somewhere in the second half of a wet week, a throat starts to feel like sandpaper and a Sri Lankan kitchen reaches for the same jar it has reached for since long before anyone measured anything. Kottamalli. A tablespoon of coriander seed, a pot of water, twenty minutes of quiet. Most households make it badly, though, and the reason is almost always the same: the pot goes on a hard boil with the lid off, and the part of the seed worth drinking leaves through the window. This is that brew, done properly, with one herb doing the work and nothing pretending to be medicine.

Start with what the seed actually is

Coriander seed is the dried fruit of Coriandrum sativum, the same plant whose fresh leaves get chopped over a curry. The seed and the leaf taste nothing alike: the leaf is sharp and green, the seed is warm, citrusy and faintly sweet, and toasting exaggerates all three of those notes. Worth knowing before anyone claims a valley: coriander is not a Sri Lankan crop. India produces the large majority of the world's coriander seed, with Turkey, Morocco, Mexico and Russia behind it, so the kottamalli jar in a Colombo kitchen is a Sri Lankan habit built on an imported seed. The habit is ours. The plant is a traveller.

What you need

Ingredients (makes 2 cups)

1 tablespoon whole coriander seed
1 teaspoon Ancient Nutra's Ginger Powder, or a 2 cm piece of fresh ginger, sliced thin
500 ml water
1 teaspoon bee honey, stirred in off the heat
1 wedge of lime, squeezed in at the end

Five things, and two of them are already on the counter. Whole seed is not optional here. Pre-ground coriander has been losing its aroma since the day it was milled, and a brew made from it tastes flat no matter how long it sits on the stove.

How to make it

Dry-toast the seed. Put the coriander seed in a dry pan over medium heat for 60 to 90 seconds, shaking it every few seconds. Stop the moment it smells like warm orange peel and a shade of colour has come up. Burnt coriander is bitter and unrescuable.
Crack it, do not powder it. Tip the seed onto a board and press it under the flat of a knife or the base of a mug until most of it has split. Cracked seed gives the water something to work with; powder turns the brew cloudy and muddy.
Simmer it covered. Add the cracked seed and the ginger to 500 ml of water, bring it to the gentlest simmer, then put the lid on and leave it 15 to 20 minutes. Small bubbles at the edge of the pot, never a rolling boil.
Rest it off the heat. Take the pot off the flame with the lid still on and give it 5 minutes. The liquid should be the colour of weak tea and smell like the toasting step.
Strain, then finish. Pour it through a tea strainer into two cups. Stir the honey in once the cup is warm rather than hot, and squeeze the lime in last so it keeps its edge.

Yields two cups. Best sipped slowly while it is still steaming, which is the part of this that is actually doing something.

Why the technique beats the ingredient list

Everything that makes kottamalli smell like kottamalli sits in the seed's volatile oil, and volatile is a literal description. Those aromatic compounds evaporate readily, which is exactly why toasting brings them forward and why a hard, uncovered boil sends them out of the pot and into the kitchen. The lid is not a fussy detail. It is the difference between a cup that tastes of warm citrus and a cup that tastes of hot water with a story attached.

Cracking works on the same logic from the other direction. A whole coriander seed is a sealed shell, and twenty minutes of gentle water barely gets inside it. Split the shell and the surface area jumps, so a shorter, gentler simmer pulls more out than a long violent one ever will. This is the whole trick: more contact, less heat, lid on.

Look for

If fresh ginger is not in the house, ground ginger has to be genuinely aromatic to be worth adding, because a dull one contributes colour and nothing else. Ancient Nutra's Ginger Powder is organically grown Sri Lankan ginger, ground for cooking and warm drinks, and made under BRCGS, FSSC 22000 and ISO 22000. Half a teaspoon is enough to notice; a full teaspoon is enough to feel.

What a hot cup can and cannot do

Here is the honest version. In a study of 30 people with a cold or flu, a hot drink produced immediate and sustained relief from runny nose, cough, sneezing, sore throat, chilliness and tiredness, while the identical drink served at room temperature relieved only runny nose, cough and sneezing. The same study found no change in measured nasal airflow at all. So the heat is doing real, felt work on how the symptoms feel, and none on the infection underneath.

That is the whole claim, and it is worth protecting from inflation. There is no human trial showing that coriander seed prevents an infection, shortens one, or improves immune function, and there is none for ginger on that question either. What research on coriander seed does exist is largely in animals, which is a reason to be curious and not a reason to say anything about people. Kottamalli earns its place as a warm, cheap, pleasant thing to drink on a rough day. That is enough for it to be worth making tonight.

The version above came out of an argument in the Ancient Nutra kitchen about whether the toasting step was superstition. Two pots went on side by side, one toasted and one not, same seed and same timer. Nobody could tell the two apart by colour. Everybody could tell them apart by smell, from across the room, and the argument ended there.

Three ways to change it

With a piece of cinnamon. Many households drop a 3 cm piece of Ceylon cinnamon bark into the pot with the seed, and it suits the brew. Keep it to the one small piece: a piece of bark in a shared pot is a culinary amount and a very different exposure from taking concentrated Ancient Nutra's Ceylon Cinnamon Powder or capsules every day, which is a habit worth bounding rather than running open-ended.

Without honey. The brew is pleasant unsweetened once the toasting is right, and it should be made unsweetened for a child under one year old, since honey is not safe for infants under twelve months.

Batched for the evening. Double everything, make a litre, and keep what is left in a covered jar in the fridge for up to 24 hours. Reheat it gently to steaming rather than boiling it again, because a second hard boil undoes the entire point of the first one.

When to drink it

Late afternoon and evening suit it best, when a scratchy throat is loudest and the house has slowed down. One or two cups on a rough day is plenty. It is not a caffeine replacement and it does not belong next to a heavy meal, where the lime tends to fight the food. If a fever climbs, a cough sticks around past a couple of weeks, or breathing feels wrong, that is a doctor's question, and a pot of kottamalli is not part of the answer.

The bottom line

Kottamalli is one herb, four supporting items and twenty minutes, and it is only as good as the three choices that cost nothing: toast the seed, crack it, keep the lid on. The minimum-viable version is coriander seed and water alone, toasted and simmered covered, which is still better than a full ingredient list boiled hard in an open pot. On the days when standing over a stove is not going to happen, a teaspoon of ground ginger whisked into hot water with lime is a fair stand-in for the warmth, if not for the ritual.

Ginger Powder 50g

Organically grown Sri Lankan ginger, ground for cooking and warming drinks.

Shop Ginger Powder

Sources and further reading

Sanu A, Eccles R. The effects of a hot drink on nasal airflow and symptoms of common cold and flu. Rhinology 2008;46(4):271-275, PubMed.
Ginger monograph, NIH LiverTox.
The European market potential for coriander seeds, CBI, Netherlands Ministry of Foreign Affairs.
More on the warm-drink habit: the batched turmeric and ginger tonic and the after-dinner ginger tea.

Written by the Ancient Nutra Wellness Team. The team researches, sources, and tests every ingredient before it earns a place in an Ancient Nutra blend. Questions? Email info@ancientnutra.com or message Ancient Nutra on Instagram.

Medical disclaimer: This article is for educational purposes only and is not medical advice. Statements have not been evaluated by the FDA. Ancient Nutra products are not intended to diagnose, treat, cure, or prevent any disease. Speak with a qualified healthcare provider before starting any new supplement, especially if you take prescription medication or have a medical condition.