Korean Rehmannia Root | Prepared Shu Di Huang Slices | 5.25 oz

Kosbee Korean Rehmannia Root is prepared rehmannia — shu di huang (숙지황) — grown in Korea and traditionally steamed and dried again and again until it turns deep black, chewy, and naturally sweet, with no added sugar, dyes, or artificial flavoring.

That long preparation is what sets it apart from raw root: it brews into a cup as dark as black coffee, with a deep, molasses-like sweetness and a soft, sticky-chewy slice. Each resealable pouch holds 5.25 oz (150 g).

The finest herbs are born from time and care. To make shu di huang, raw rehmannia root is steamed and dried over and over in the traditional Korean way, until a plain root becomes a glossy "black diamond" — dark, dense, and richly sweet. Kosbee honors that same slow, patient method.

From Steamed Root to Black Diamond

Raw rehmannia is pale and sharp-tasting. Prepared rehmannia is made by steaming and drying it repeatedly — a traditional method sometimes called nine-steam, nine-dry — which deepens the color to glossy black and turns the flavor round and sweet.

That craft is exactly what shoppers worry is missing from cheap versions. These slices are genuinely prepared, so you can see the deep-black color and feel the chewy texture for yourself.

Korean-Grown, Not a Bulk Import

Search "shu di huang" online and most results are bulk imports with little detail on origin or how they were processed. Kosbee is a Product of Korea, where soil and hygiene are tightly managed, and the pouch shows clear Nutrition Facts.

It is carefully packed and meant to be refrigerated, so it arrives clean — not loose, dusty, or moldy.

What's in the Pouch

100% Korean Prepared Rehmannia (Shu Di Huang / 숙지황)

Real rehmannia root grown in Korea and traditionally steamed and dried, with no additives.

Deep Black, Chewy, Naturally Sweet

The repeated steaming gives it a glossy black color, a sticky-chewy texture, and a rich, molasses-like sweetness.

No Added Sugar

The deep sweetness comes from the root itself — 0 g added sugar, no dyes or flavoring.

Resealable Zip Pouch

Because prepared root is moist and sticky, reseal and refrigerate after opening to keep it fresh.

Each 5.25 oz (150 g) pouch holds about 15 servings (1/4 cup / 10 g each). A serving has naturally occurring minerals, including potassium (about 436 mg, 9% DV) and iron (about 1 mg, 6% DV).

How to Use Korean Rehmannia Root

For tea, simmer 10 to 20 g of slices in 1 quart (about 1 liter) of water on low heat for at least 1 hour, then strain. On its own it brews into a cup as dark as black coffee, with a soft, natural sweetness.

It is also a traditional base for classic herbal blends — for example, simmered with angelica (dang gui), cnidium (chuan xiong), and white peony for the well-known recipe Si Wu Tang (사물탕).

The prepared root is rich and dense, so many people simmer it with a few slices of ginger to keep the brew light, or add a piece to bone broths and soups like samgyetang or galbitang for deeper flavor.

Common Questions About Shu Di Huang

Is this rehmannia root really prepared and from Korea?

Yes. Kosbee Korean Rehmannia Root is true prepared rehmannia — shu di huang — grown in Korea and traditionally steamed and dried, which is what gives it the deep-black color and chewy texture. It is packed in a resealable pouch and shipped from our New Jersey warehouse.

How do I make rehmannia root tea?

Simmer 10 to 20 g of slices in 1 quart (1 liter) of water on low heat for at least an hour, then strain. On its own it brews dark and naturally sweet. Many people add a few slices of ginger, or combine it with other herbs for blends like Si Wu Tang.

Is there anything to know before using it?

The prepared root is rich and dense, so it is often simmered with ginger and enjoyed in moderation. If you have a plant-food allergy, check the label. If you take prescription medication, or are pregnant or nursing, talk to your doctor before adding it to your routine.

How is this different from other shu di huang?

Most shu di huang online is bulk import with little detail on origin or how it was prepared. Kosbee root is grown in Korea, traditionally steamed and dried, and shown with clear Nutrition Facts — packed and refrigerated carefully so it arrives clean, not moldy or unclear.

Bring This Traditional Root Home

Want genuinely prepared, Korean-grown shu di huang you can trust? Explore More Korean Herbs at Kosbee. Sourced by Kosbee and shipped from our New Jersey warehouse within 1 business day.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.