Korean Reishi Mushroom Slices – Sliced Lingzhi Tea | 2.2 oz
What Is Reishi? (Lingzhi / Yeongji / Ganoderma lucidum)
Reishi mushroom — known as Lingzhi in Chinese, Yeongji (영지) in Korean, and botanically as Ganoderma lucidum — is one of the most revered functional mushrooms in traditional East Asian wellness. For over two thousand years it has been so prized that it earned a poetic nickname: the "mushroom of immortality."
Kosbee brings you the premium version — 100% Korean-grown Reishi, cleaned and pre-sliced, ready to brew into a deep, earthy wellness tea or simmer into a restorative broth.
Pre-Sliced — No More Battling a Rock-Hard Mushroom
Anyone who has bought whole Reishi knows the frustration: this mushroom is woody and rock-hard, and cutting it at home is nearly impossible without serious tools. Kosbee solves this completely. Our Reishi is professionally sliced to an ideal brewing thickness, cleanly washed, and naturally dried — so its deep flavor and active compounds extract evenly into hot water. Just open the resealable pouch, take a few slices, and brew.
The Ultimate Adaptogen Mushroom
Reishi is one of the most respected adaptogens in the wellness world — herbs and mushrooms traditionally used to help the body resist stress and restore its natural balance.* It's naturally rich in two notable compound groups:
- Beta-glucans — polysaccharides traditionally associated with supporting the body's natural immune response*
- Triterpenes — the compounds behind Reishi's signature bitterness and its calming reputation*
In traditional East Asian wellness, Reishi has long been the mushroom of choice for those seeking calm, restful evenings and steady, balanced energy — a grounding cup to unwind with after a demanding day.*
A Pure, Clean-Label Functional Mushroom
- 100% caffeine-free — enjoy it any time, especially in the evening
- Naturally rich in beta-glucans and triterpenes
- No added sugar, no flavoring, no preservatives
- Single ingredient: 100% Korean Reishi mushroom
- Plant-based, naturally light, a whole-food alternative to capsules
How to Brew Reishi Mushroom Tea
Immune-Supporting Reishi Tea
Add 3–5 slices (about 3–5 g) of Reishi to 1 liter of water. Bring to a boil, then reduce to low and simmer for 30–60 minutes — the longer you simmer, the deeper and stronger the brew. The water turns a rich amber-brown.
Tame the bitterness: Reishi is genuinely bitter on its own. Simmering it with honey or Korean jujubes rounds out the flavor into a much smoother, more enjoyable cup. The slices can typically be re-simmered once more.
Restorative Health Broth
Add 1–2 slices to samgyetang or any nourishing soup. Reishi lends a deep, woody complexity and turns an everyday broth into a restorative meal.
About the Bitterness — Please Read
Reishi mushroom is naturally and intensely bitter. This is important to know before your first cup. That bitterness comes directly from the triterpenes — the very compounds Reishi is valued for. A strong bitter taste is a sign of authentic, potent Reishi — not a product defect. If you prefer a milder cup, simply simmer with honey or jujubes, which balance the bitterness beautifully without masking the mushroom's character.
Who It's For
- Stressed-out professionals who want a calming, caffeine-free evening ritual to unwind after a demanding workday
- Immune-conscious biohackers who prefer optimizing wellness with a real whole-food mushroom rather than synthetic capsules
- Traditional wellness explorers curious about East Asian functional mushrooms and looking for a caffeine-free coffee alternative
- Adaptogen enthusiasts building a whole-food, plant-based wellness routine
Important Safety Information
⚠ Intensely bitter by nature. Reishi's strong bitterness comes from its triterpenes and is normal. Simmer with honey or jujubes for a milder cup.
⚠ Medication interactions. Reishi may interact with blood thinners and blood pressure medication. Consult your doctor before use if you take either.
⚠ Pregnancy and nursing. Please consult a healthcare provider before consuming.
⚠ Brew, don't eat. Reishi slices are woody and used as a brewing herb. Simmer, strain, and consume only the resulting tea or broth.
Storage
After opening, reseal the zipper pouch tightly and store in a cool, dry place away from direct sunlight. For long-term storage, refrigeration is recommended to preserve freshness and aroma.
Frequently Asked Questions
Why is Reishi tea so bitter? Is something wrong with it?
Nothing is wrong — Reishi is naturally and intensely bitter. The bitterness comes from triterpenes, the very compounds Reishi is valued for. A strong bitter taste is a sign of authentic, potent Reishi. Simmer with honey or Korean jujubes to round out the flavor into a smoother cup.
Is this Reishi from Korea or China?
100% grown in Korea's clean regions under strict pesticide and heavy-metal standards. Much of the low-cost Reishi sold online is Chinese-grown with inconsistent quality. Kosbee Reishi is Korean-grown, cleanly washed, pre-sliced, with country of origin clearly labeled on every pouch.
How long should I simmer Reishi, and can I reuse the slices?
Simmer 3–5 slices in 1 liter of water for 30–60 minutes — longer simmering yields a deeper, stronger brew. The slices can typically be re-simmered one more time before discarding. Only the brewed liquid is consumed; the woody slices are not eaten.
Does Reishi tea contain caffeine?
No, Reishi mushroom tea is 100% caffeine-free. It's traditionally enjoyed as a calming evening drink and makes an excellent caffeine-free alternative to coffee, suitable any time of day.
Why is pre-sliced Reishi better than whole?
Whole Reishi is woody and rock-hard — cutting it at home is extremely difficult and a frequent customer complaint. Kosbee's pre-sliced Reishi is cut to an ideal brewing thickness so the active compounds extract evenly, with no tools or prep work needed.
* 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.
