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  3. Koga Seicha Honpo
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Koga Seicha Honpo logo

Koga Seicha Honpo

古賀製茶本舗

Founded in 1819 in Yame, Fukuoka, Koga Seicha Honpo makes Yame tea and sells it wholesale, retail, and by mail order.

Brand story

Koga Seicha Honpo traces its roots to Bunsei 2 (1819) and calls itself a Yame tea specialist. Its site describes careful leaf selection, roasting in its own factory, and a mix of craftsmanship and modern machines, and says it has made tea for more than 200 years. It lists Organic JAS (production-process management and repackaging), kosher (2016) and HACCP (2017, covering all manufacturing processes) certifications.

Brand Facts

Japanese name
古賀製茶本舗
Founded
1819
Headquarters
Yame, Fukuoka
Origin regions
Yame
Certifications
JAS Organic, Kosher Certified, HACCP Certified
Official site
www.koganoyamecha.co.jp
Ships to
Japan
Price/gram range
$0.03–$0.03/g
Blends tracked
6
Origin regionsYame
CertificationsJAS OrganicKosher CertifiedHACCP Certified

Blend Lineup

6 blends
  • Gyokuro Matcha-iri Tea Bag 5g x 12p

    Gyokuro Matcha-iri Tea Bag 5g x 12p

    Lowest in stock: ¥13/g (≈$0.08/g) at Koga Seicha Honpo Official

  • Matcha Cappuccino Stick Type 15g x 5

    Matcha Cappuccino Stick Type 15g x 5

    Uji

    Lowest in stock: ¥7/g (≈$0.05/g) at Koga Seicha Honpo Official

  • Matcha-iri Genmaicha 200g

    Matcha-iri Genmaicha 200g

    Lowest in stock: ¥4/g (≈$0.03/g) at Koga Seicha Honpo Official

  • Matcha-iri Genmaicha Tea Bag Mini 5g x 15p

    Matcha-iri Genmaicha Tea Bag Mini 5g x 15p

    Lowest in stock: ¥10/g (≈$0.06/g) at Koga Seicha Honpo Official

  • Moe Yahime-no-cha Matcha-iri Sencha 100g

    Moe Yahime-no-cha Matcha-iri Sencha 100g

    Lowest in stock: ¥5/g (≈$0.03/g) at Koga Seicha Honpo Official

  • One-Cup Matcha-iri Genmaicha Tea Bag 2.5g x 20p

    One-Cup Matcha-iri Genmaicha Tea Bag 2.5g x 20p

    Lowest in stock: ¥11/g (≈$0.07/g) at Koga Seicha Honpo Official

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Where to Buy Koga Seicha Honpo in Japan

Official stores and authorized retailers in Japan.

Headquarters Official Store

Yame, Fukuoka

  • 株式会社 古賀製茶本舗

    Headquarters

    〒834-0012 福岡県八女市山内486

  • 古賀製茶本舗

    Official Store

    〒834-0012 福岡県八女市山内486

Frequently Asked Questions

When was Koga Seicha Honpo founded?
Koga Seicha Honpo was founded in 1819, based in Yame, Fukuoka. That is 207 years ago.
Where is Koga Seicha Honpo matcha grown?
The Koga Seicha Honpo teas on this page come from Yame, Fukuoka prefecture.
How many matcha products does Koga Seicha Honpo offer?
This page lists 6 Koga Seicha Honpo matcha blends.
Is Koga Seicha Honpo a good matcha for beginners?
At $0.03–$0.03 per gram, Koga Seicha Honpo is inexpensive to try. Price does not tell you how it tastes.
Where does Koga Seicha Honpo ship to?
Listed regions: Japan. Check Koga Seicha Honpo's official site for your destination.
Where can I buy Koga Seicha Honpo matcha in Japan?
This page lists 1 Koga Seicha Honpo shop in Japan: 古賀製茶本舗 in Yame.
Is Koga Seicha Honpo matcha organic?
Koga Seicha Honpo lists organic certification, and also Kosher Certified, HACCP Certified. A certificate may cover only some facilities or products; check the pack.

Sources

Sources (3)

Koga Seicha Honpo Company

Accessed Mar 27, 2026Confidence: 98%

Supports: Founded in 1819; address in Yame, Fukuoka; business scope; Organic JAS, kosher, and HACCP certifications.

Koga Seicha Honpo About

Accessed Mar 27, 2026Confidence: 96%

Supports: Brand history, Yame focus, in-house roasting/process philosophy, and certification narrative.

Koga Seicha Honpo Official Shop Search

Accessed Mar 27, 2026Confidence: 94%

Supports: Official webshop search for matcha returns six current matcha-related products used for this brand update.

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How does Koga Seicha Honpo compare?

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Brand Facts

Japanese name
古賀製茶本舗
Founded
1819
Headquarters
Yame, Fukuoka
Origin regions
Yame
Certifications
JAS Organic, Kosher Certified, HACCP Certified
Official site
www.koganoyamecha.co.jp
Ships to
Japan
Price/gram range
$0.03–$0.03/g
Blends tracked
6

Trust & Verification

Method
official_website
Sources used
3 sources
Edited by
Ayane ShibataAyane Shibata
Last change
May 11, 2026
How we verify data →

Official brand site

Visit official site

Origin regions

  • YameFukuoka

Price range

$0.03–$0.03/g

per gram across 6 blends