Kadha is a simple herbal drink made by simmering spices and herbs in water until the liquid reduces by about half. The whole process takes roughly 10 to 15 minutes, and you only need a handful of kitchen ingredients. It’s a traditional Indian remedy commonly used during cold and flu season to ease sore throats, reduce congestion, and support immunity.
The Basic Recipe
Start with these ingredients:
- Water: 100 ml (about half a cup)
- Fresh ginger: 1 inch, peeled and roughly crushed
- Black peppercorns: 5 to 6, lightly crushed
- Cloves: 4 to 5
- Cinnamon: one 2-inch stick
- Fresh basil leaves (tulsi): 5 to 6
- Honey: half a teaspoon (added after cooking)
Optional additions include a pinch of turmeric, a small piece of licorice root (mulethi), or a crushed cardamom pod. If you add turmeric, toss in the black pepper too. The compound in black pepper increases your body’s ability to absorb turmeric’s active ingredient by up to 2,000%, turning what would otherwise pass through your system into something your body can actually use.
Step-by-Step Preparation
Pour the water into a small saucepan and add all the dry spices and herbs. Bring it to a boil, then lower the heat and let it simmer for 5 to 10 minutes. You’re aiming to reduce the liquid to roughly 50 ml, about half of what you started with. This concentrates the flavors and the beneficial compounds from the spices.
Strain the liquid into a cup through a fine mesh strainer or a small piece of cloth. Let it cool until it’s warm but comfortable to touch. Then stir in the honey. This step matters: honey should not go into boiling or very hot liquid. A good test is to dip your pinky finger into the drink. If you can hold it there for five seconds without discomfort, the temperature is right for adding honey. If you prefer, you can use jaggery instead, which can be added during the boiling stage since it isn’t heat-sensitive the way honey is.
Sip the kadha slowly while it’s still warm.
Why These Ingredients Work Together
Each ingredient in kadha plays a specific role. Ginger and black pepper both generate warmth in the body and help open up congested airways. Cloves have natural antiseptic properties that soothe a raw throat and help reduce coughing. Cinnamon adds a mild sweetness while contributing its own warming effect.
Basil leaves are the backbone of many kadha recipes. They help reduce mucus buildup in the chest and throat, and they’re packed with vitamins A, C, and K along with minerals like magnesium, iron, and calcium. Together, these spices create a drink with natural anti-inflammatory and antiviral properties, which is why kadha has been a go-to home remedy during seasonal illness for generations.
How to Adjust the Recipe
One of the best things about kadha is that you can tailor it to what you’re dealing with. If you have a dry, scratchy cough with no mucus, lean heavier on honey and licorice root, which coat and soothe an irritated throat. Reduce the black pepper slightly, since too much warming spice can further dry out your airways.
For a wet, productive cough with congestion, increase the ginger and black pepper. Add a pinch of turmeric. These heat-generating ingredients help thin out mucus and keep things moving. You can also add a small piece of long pepper (pippali) if you have it, which has a similar warming, mucus-clearing effect.
If you find the taste too strong or bitter, a squeeze of lemon after straining adds brightness and a dose of vitamin C without changing the drink’s effectiveness.
How Much and How Often
A single serving of kadha should be about 50 ml, roughly a few sips rather than a full mug. This is a concentrated herbal preparation, not tea, so a little goes a long way.
How often you can drink it depends partly on your body’s natural tendencies. If you tend to run warm, get flushed easily, or are prone to acidity, limit yourself to once a day. If you tend to run cold and deal with frequent congestion or sluggish digestion, you can have it two to three times daily. Most people do well with one to two servings a day during the cold season or when feeling under the weather.
Side Effects of Overdoing It
Every core kadha ingredient, from black pepper to cinnamon to ginger, generates heat in the body. Drinking too much or having it too frequently can tip things into uncomfortable territory. The most common signs you’re overdoing it include persistent acidity or heartburn, mouth sores or boils, indigestion, and in more extreme cases, nosebleeds.
If you notice any of these symptoms after a few days of regular kadha, cut back to once a day or take a break entirely. People who already deal with acid reflux or ulcers should be especially cautious, starting with a weaker version (less pepper, less ginger) and seeing how their stomach responds before committing to a daily habit.
Making Kadha in Larger Batches
If you want to prepare kadha for a household, scale the recipe up proportionally. Use 2 cups of water with double the spices, and simmer until it reduces to about 1 cup. Store any extra in a glass jar in the refrigerator for up to 24 hours and gently reheat individual servings on the stove. Add honey fresh to each serving after reheating rather than mixing it into the whole batch while hot. The spice mixture itself, minus basil leaves, can be pre-ground and stored in an airtight container for a week or two, making daily preparation faster.