Food therapy

Winter melon and coix seed soup

Updated 21 October 2026

A clear winter melon and coix seed soup, simmered slowly and eaten warm in place of an evening starch, is a classical Cantonese-kitchen summer remedy. Both ingredients are noted in the Bencao Gangmu for draining dampness and lightening the body, and the bowl is meant to be repeated across a few hot weeks rather than judged after one try.

Herbs and practices affect people differently — nothing here suits everyone. Take it as reference.

Tonight, try this

Boil a pot tonight. Rinse and soak the coix seed, then set it simmering with the tangerine peel, red dates and water; when it rolls, skim the foam, add the winter melon wedges and one slice of ginger, and keep the heat low until the melon turns nearly translucent. Ladle the clear broth and tender melon into a warm bowl as the main hot course of the evening — and repeat the same pot on another evening later this week.

Ingredients

Winter melon, the large pale-green gourd, peeled and cut into thick wedges
Dried coix seed (yi mi), the pearly Job’s tears sold in herb and dried-goods shops
Dried tangerine peel (chen pi), a small piece rinsed and softened
Two or three red dates (hong zao), pitted, for a gentle rounded note
A small slice of fresh ginger, lightly smashed
Plain water, enough to cover the melon by a hand’s width

How it is made

Rinse the dried coix seed and tangerine peel until the water runs mostly clear.
Soak the coix seed in cool water for half an hour so it softens and cooks evenly.
Bring the coix seed, tangerine peel, red dates and water to a quiet boil in a heavy pot.
Skim any pale foam that rises, then drop the heat to a low simmer.
Add the winter melon wedges and the ginger, and slip the lid on slightly ajar.
Simmer gently until the winter melon goes from opaque white to almost translucent.
Lift out the ginger and the larger pieces of tangerine peel before serving.
Ladle the clear broth and tender melon into a warm bowl, and eat it as the main warm course of the evening.

When it is made

The soup belongs to the long Cantonese habit of a clear evening bowl in the humid summer months, when the kitchen wants something warm but not heavy, and the family is looking for a lighter way to round off the day. It is also a quiet postpartum and recovery-kitchen staple, where the point is gentle nourishment rather than richness, and it pairs naturally with a small plate of greens rather than a heavy starch. The tradition expects the bowl to repeat two or three evenings a week across the hot stretch of the year, so the habit is the dish, not a single meal.

Disclaimer

At culinary amounts, winter melon and coix seed are gentle kitchen ingredients with no well-documented drug interactions in the classical sources. Winter melon is mildly diuretic, so if you are already on a water pill, have unstable blood pressure, or are pregnant, it is worth a quick word with your own provider before making it a weekly habit. People with a known allergy to either ingredient should swap them out instead.

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Where this comes from

Traditional practice as recorded in classical texts and public formularies (public domain)
Everyday food culture, described as practice rather than studied therapy
PubMed abstracts only for studies this page actually names