Nam takrai is a cooling Thai herbal water made by simmering or steeping bruised lemongrass — often with pandan leaf — then sweetening lightly and serving cold over ice. The drink is pale yellow-green, clean and citrusy, with lemongrass's bright lemon-grassy aroma and pandan's soft, rice-like fragrance behind it. It is sold at markets and health stalls and made at home as an everyday thirst-quencher, valued as a fresh, fragrant alternative to tea or soda. Gentle and unsweet by nature, it leans on aroma rather than sugar.
Nam takrai has no single inventor; it is a traditional Thai herbal water built on takrai (lemongrass, Cymbopogon citratus), one of the most fundamental aromatics in Thai cooking, used everywhere from tom yum to curry pastes. As a sweetened cooling drink it belongs to the broad Thai and Southeast Asian habit of brewing everyday aromatics — lemongrass, pandan, butterfly pea, roselle — into fragrant waters. It is a folk and home preparation rather than a documented commercial creation, and no origin date or first-maker is securely recorded; pandan is a very common partner because it adds a rounding sweetness and aroma.
Pale and clear with a faint herbal cloudiness, served very cold over ice. The aroma leads — a clean, lemony, green lemongrass scent with pandan's soft vanilla-grassy note woven through. The taste is light and only gently sweet, more fragrant than sugary, with a mild citrus-grass freshness and no astringency. It finishes clean and slightly perfumed, cooling on a hot day. A squeeze of lime, sometimes added, sharpens it; without it the drink stays soft and aromatic rather than tart.
The drink is an aromatic water extraction. Lemongrass stalks are bruised or crushed to rupture their cells and release essential oils — chiefly citral (the geranial-and-neral pair), the compound behind lemongrass's lemony aroma — then heated in water so those oils and water-soluble flavors infuse out. Bruising matters: intact stalks give little aroma, while crushed ones release far more. Pandan, added alongside, contributes 2-acetyl-1-pyrroline, the same grassy, rice-like volatile that scents jasmine rice. Gentle simmering or hot steeping extracts the aromatics without driving them off; boiling too hard or too long can volatilize the delicate citral and dull the fragrance. Sweetener is dissolved while warm and the drink chilled, since serving it cold over ice keeps it crisp and refreshing.
Variations
Pandan is the most common partner, added for a rounder, sweeter aroma; ginger or a squeeze of lime are frequent additions, and some versions blend in butterfly pea for color. Sweetness ranges from barely-there to a fuller sugar-syrup pour. The same lemongrass water is sometimes drunk warm as a soothing herbal tisane. It sits within a family of Thai aromatic waters alongside roselle (nam krachiap), pandan water (nam bai toey), and pennywort juice (nam bai bua bok), all everyday fragrant coolers.
On the Palate
Where Nam Takrai sits in the Thai flavor cloud
Ingredients
Serves 4How it's made
8 steps · 12 min active + 13 min waiting
- 14 min
Trim lemongrass stalks, then bruise and crush them well with the flat of a knife or a pestle to release their oils; cut into shorter lengths.
Watch outCrush the lemongrass really well — bruised stalks release far more of the lemony oils; whole stalks give you barely any aroma.
- 21 min
Knot or fold a few pandan leaves, if using, so they fit the pot.
- 32 min
Bring water to a boil, add the crushed lemongrass and pandan, then lower to a gentle simmer.
- 45 min
Simmer gently for several minutes until the water is fragrant and pale yellow-green, then turn off the heat.
- 58 min
Let it steep off the heat to draw out more aroma without boiling off the delicate oils.
Watch outSteep off the heat rather than boiling on — a hard boil drives the delicate aromatics off; gentle heat draws them out.
- 61 min
Strain out the lemongrass and pandan.
- 72 min
Stir in sugar or syrup to taste while the liquid is still warm so it dissolves fully, then cool and chill.
- 81 min
Pour over ice, add a squeeze of lime if liked, and serve cold.
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