Herbal & Flower Teas
Roasted Black Soybean Tea (Qing Ren Hei Dou Cha)
traditionally used to nourish the kidneys, support hair vitality, ease night sweats, and promote healthy ageing
In short: Roasted Black Soybean Tea (Qing Ren Hei Dou Cha) is a herbal & flower tea that traditionally used to nourish the kidneys, support hair vitality, ease night sweats, and promote healthy ageing. It is most often made for children's wellness, skin & natural beauty, kidney & urinary wellness. Total time about 17 min.
Why people make this tea
Nourilo keeps a jar of dry-roasted black soybeans on his kitchen counter, ready to brew a quick cup whenever he likes. Black soybeans — particularly the variety with a green centre (qing ren hei dou) — have been used in Chinese food therapy for centuries to support the kidneys and liver, darken greying hair, and build overall vitality. The green interior adds extra liver-supporting benefit, while the dark skin is rich in anthocyanins that support circulation and have antioxidant properties. Roasting the beans first eliminates the raw bean’s harsh compounds and transforms them into something genuinely fragrant and enjoyable to drink.
What studies say about the key ingredients
Traditional use is not the same as clinical proof. Here is the strongest human research we found for each ingredient, limitations included.
- Black soybeans
Systolic blood pressure fell more in the black soy peptide group (-9.69 mm Hg) than in the placebo group (-2.91 mm Hg) after baseline adjustment. Plasma malondialdehyde decreased and superoxide dismutase activity increased compared with placebo.Limitation: Used an isolated peptide supplement rather than whole black soybeans, and followed participants for only 8 weeks, so the results may not apply to food intake.PubMed 23924691
From the Nourilo Research Library. Findings come from specific doses, extracts and populations and may not apply to a home-cooked recipe.
Safety first — read before you cook
This is a traditional food, not a treatment. Please check with your doctor or pharmacist before making it a regular part of your diet if you:
- are pregnant or breastfeeding, or are cooking for a young child;
- take regular medicines — especially blood thinners, blood-pressure, diabetes or immune-suppressing drugs;
- have a kidney, liver or heart condition, or a known food allergy.
Stop eating it and seek advice if you notice an allergic reaction or feel unwell. Safety notes reviewed 8 October 2026 · How we write safety notes
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