Shopping Cart

Your cart is empty

Continue Shopping

Make koji fun and more accessible.

[New] Koji Certification Level 1 Program Information Released!

For information about the 2026 certification exams for each level, please click the "Koji Certification Official Website" button.

Archived video now on sale

All programs from KOJI THE KITCHEN Academy Vol.6 held on Saturday, February 21, 2026, are included.

Kojiya Sanzaemon's Seed Koji

Would you like to make homemade fermented foods using koji-kin to make koji?

orise Amazake & Seasonings

Amazake that received the OMOTENASHI Selection Award

  • 【ご注文時の注意事項】

    配送希望日をご指定いただく際は、「月日」のお間違いがないよう、今一度ご確認をお願いいたします。
    発送準備開始後の配送日時変更やキャンセルにつきましては、ご希望に添えない場合がございます。
    特に、ご出発日・イベント・ご使用予定日がある場合は、余裕をもった日程でご注文ください。
    配送先がホテルなどの宿泊施設の場合、「宿泊者」・「チェックイン日」をご記載ください。
    宿泊先によっては「冷凍」・「冷蔵」商品は受け取り出来ません。予めご了承ください。

    領収書をご希望の場合は、ご注文時にその旨をご記載いただき、あわせて【宛名】【但し書き】をご入力ください。
    なお、コンビニ決済の場合は、コンビニエンスストア発行の「受領書」または「払込票控え」が正式な領収書となります。
    二重発行防止のため、弊社から別途領収書を発行することはできかねます


    また、送付先住所の記載漏れ・入力不備が増えております。
    ご住所に不備がある場合、商品を正常にお届けできず、弊社へ返送となる場合がございます。ご注文確定前に、配送先ご住所・お電話番号等に誤りがないか、必ずご確認をお願いいたします。


    円滑なご注文・配送対応のため、ご理解・ご協力のほどよろしくお願いいたします。

  • 2026.04.28 Koji Test Information Now Available

    Information on the 2026 Koji Certification Exam has been released! The newly established "Koji Certification Level 1 Program" offers knowledge vital for business, such as product planning and information dissemination, for those who have passed the Koji Certification Level 2 exam.

    Click here for details

  • April 3, 2026 - GW Holiday Notice

    Kojiya Sanzaemon Online Store will be closed for Golden Week from Friday, May 1, 2026, 11:00 AM, to Sunday, May 10.

     

    Shipping of ordered products and responses to inquiries will be handled sequentially from Monday, May 11.

  • 26.03.24 We have published the event report for "KTK Academy vol6" and "San-en Gastronomy Tour"!

    We have released event reports for "KOJI THE KITCHEN Academy vol.6," held on February 21, 2026, and the "San-En Gastronomy Tour," held on February 22! Please take a look at the full report, which condenses the highlights of both days!

    ・Click here for the KOJI THE KITCHEN Academy vol.6 event report

    ・Click here for the San-En Gastronomy Tour event report

  • 2026.02.30 KTKvol.6 archive video on sale now!

    Archive videos of KOJI THE KITCHEN Academy vol.6, held on February 21, 2026, are now on sale! Approximately six hours of discussion on the theme of "Fermentation x Gastronomy" are fully recorded. The archive purchase page is here.

Make your own koji

Koji Starter for Kitchen Use

We sell seed koji (koji mold), the base for koji production, in sizes suitable for home kitchens. Choose from a total...

Enrich your daily life

Amazake and Koji Seasonings

Amazake and seasonings made with domestically grown, pesticide-reduced rice, sugar-free and non-alcoholic. We also ha...

FAQ

FAQ

We have compiled a list of frequently asked questions.

Please check it out and contact us if you have any questions.

FAQ

access

Kojiya Sanzaemon Co., Ltd.

441-8087 111-1 Murocho Uchida, Toyohashi City, Aichi Prefecture
Phone: 0532-31-9210
 Weekdays 9:00 - 17:00 (Closed Saturdays, Sundays, and public holidays)

If you wish to purchase in-store, calling us in advance will ensure a smoother experience.

 

友だち追加

 

Adding us on LINE is convenient for in-store purchases.