Description
š¾ Marumi Koji ā500-Year Springā Brown Rice Miso
Naturally Farmed Brown Rice ⢠Whole Soybeans ⢠Wooden-Vat Fermented
A deeply layered Japanese miso made with naturally farmed brown rice and whole soybeans, grown without pesticides, chemical fertilisers, or organic fertilisers.
Unlike ordinary rice koji, this miso transforms the entire unpolished brown rice grain into koji, retaining the bran and germ to express a whole-food philosophy that values ingredients in a form close to nature.
⨠Why Youāll Love It
ā Made with naturally farmed Japanese brown rice and whole soybeans
ā Uses wholegrain brown rice koji
ā Fermented in a custom-made Yoshino cedar vat
ā Matured in a cellar incorporating Binchotan charcoal
ā Rich brown rice depth with full soybean umami
ā Crafted by Marumi Koji Honten, founded in 1950
A refined miso for those who appreciate natural farming, whole grains, and traditional Japanese fermentation.
šæ Wholegrain Koji & Slow Fermentation
The brown rice koji is combined with naturally farmed whole soybeans and sun-dried crystal salt, then slowly fermented in a Yoshino cedar vat.
Yoshino cedar, known for its fine grain and durability, has long been used in traditional Japanese sake barrels. Wooden-vat fermentation gives the miso a rounded depth, while Binchotan charcoal maturation helps create a clean and balanced finish.
š½ļø How to Enjoy
Use for:
- Miso soup
- Rice balls or warm rice
- Vegetable dips
- Marinades
- Dressings and sauces
It brings rich umami, brown rice aroma, and gentle depth to everyday meals.
About ā500-Year Springā
The name ā500-Year Springā comes from a passage by the ancient philosopher Zhuangzi, describing a great tree for which five hundred years pass as a single spring.
It reflects Marumi Koji Hontenās wish for healthy longevity and a life lived in harmony with nature.
āļø Storage Condition
Keep refrigerated at 10°C or below.
Once opened, keep refrigerated and consume soon.
A premium Japanese brown rice miso that brings together whole grains, naturally farmed ingredients, wooden-vat fermentation, and the philosophy of lifelong wellbeing.
Processed in:
Okayama
Spec:
300g
Ingredients:
rice, soy, sun-dried salt

















![Coprinus Mushroom, 60g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/coprinus-mushroom-60g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-3249170.jpg?v=1788488168&width=1080)
![Coprinus Mushroom, 60g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/coprinus-mushroom-60g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-5460418.jpg?v=1788488168&width=1080)
![Kakinoki Mushroom (Japanese Enoki), 150g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/kakinoki-mushroom-japanese-enoki-150g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-9912060.jpg?v=1788488109&width=1080)
![Kakinoki Mushroom (Japanese Enoki), 150g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/kakinoki-mushroom-japanese-enoki-150g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-6059996.jpg?v=1788488109&width=1080)
![Japanese Enoki Mushroom, 200g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/japanese-enoki-mushroom-200g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-3325251.jpg?v=1788488107&width=1080)
![Japanese Enoki Mushroom, 200g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/japanese-enoki-mushroom-200g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-5558096.jpg?v=1788488107&width=1080)
![Japanese Eryngii (King Oyster Mushroom), 100g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/japanese-eryngii-king-oyster-mushroom-100g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-3763262.jpg?v=1788488107&width=1080)
![Japanese Eryngii (King Oyster Mushroom), 100g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/japanese-eryngii-king-oyster-mushroom-100g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-2406848.jpg?v=1788488107&width=1080)
![Yamabushitake (Lionās Mane Mushroom), 100g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/yamabushitake-lions-mane-mushroom-100g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-8146892.jpg?v=1788488109&width=1080)
![Yamabushitake (Lionās Mane Mushroom), 100g / 1 Pack, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/yamabushitake-lions-mane-mushroom-100g-1-pack-nagano-fair-2026-delivery-18th-19th-sep-6679610.jpg?v=1788488109&width=1080)
![Reigetsu Tomato, 4pcs / Approx. 500g, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/reigetsu-tomato-4pcs-approx-500g-nagano-fair-2026-delivery-18th-19th-sep-4913541.jpg?v=1788488107&width=1080)
![Reigetsu Tomato, 4pcs / Approx. 500g, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/reigetsu-tomato-4pcs-approx-500g-nagano-fair-2026-delivery-18th-19th-sep-9059913.jpg?v=1788488107&width=1080)
![Japanese Cabbage, 1pc / Approx. 800g, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/japanese-cabbage-1pc-approx-800g-nagano-fair-2026-delivery-18th-19th-sep-7524098.jpg?v=1788488108&width=1080)
![Japanese Cabbage, 1pc / Approx. 800g, [Nagano Fair 2026] | Delivery: 18thā19th Sep - TFD (Tokyo Fresh Direct)](http://tokyofreshdirect.com/cdn/shop/files/japanese-cabbage-1pc-approx-800g-nagano-fair-2026-delivery-18th-19th-sep-1715293.jpg?v=1788488108&width=1080)