Water Caltrop and Coix Seed Congee

Why people make this congee

Water caltrop (ling jiao) is an autumn specialty — a small, hard-shelled aquatic nut whose season is brief. Pre-shelled kernels are widely available and far more convenient; in terms of flavour, eating them from the shell is more satisfying, but the shelled version works perfectly in this congee. In Chinese food therapy, water caltrop has both a traditional and a modern-research dimension: it is traditionally considered to clear heat and support digestive function, and modern research has pointed to compounds in the fruit flesh that may have relevance to cancer biology — including activity against Ehrlich ascites tumour, and components associated with oesophageal, cervical and breast cancer research.

Coix seed (yi mi / Job’s tears) is one of the most widely used everyday health grains in Chinese food therapy. It supports the drainage of excess fluid, strengthens the spleen, nourishes the skin and lungs — and like water caltrop, modern research has identified active compounds (including selenium, coix seed ester and linoleic acid) that are associated with anti-tumour activity. Combining these two ingredients into a simple congee creates a wholesome, easy-to-digest dish that is suitable as a regular health food for the whole family.

Method

1. Rinse both ingredients and soak the coix seed in cold water for about 30 minutes.
2. Place both ingredients in a pot with 1.8–2.1 L of water.
3. Bring to a boil, then reduce to a gentle simmer for 1 hour until the congee is soft and creamy.
4. Serve as is — no additional seasoning is necessary. The congee has a natural, mildly sweet flavour.

Nourilo’s Tips

This congee can be eaten regularly as an everyday health food — it is gentle on the stomach and easy to digest, making it suitable for those with weak digestion or those who are frail. Regular consumption is traditionally thought to support metabolism and ease the burden on the digestive system. Because water caltrop is high in starch, people with diabetes should limit their portion size. Those undergoing cancer treatment should continue their medical treatment — this congee is a dietary complement, not a replacement.