SKU: 98506611326

Koji Spores for White Koji from Bio'c

Sale price$24.75 Regular price$27.50
Save 10%

Pay in installments of $6.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Koji Spores for White Koji from Bio'cTane Koji Koji Starter This Kosher Certified Koji spore is used by Shochu distilleries in Japan. These spores are Aspergillus luchuensis. Koji made from White Koji Spores has a sweetness from the rice decomposition and a sour taste from the naturally occurring citric acid. The color of the spore itself is somewhere between off white to eggshell color, and the finished Koji has a white color and a beautiful appearance. You can enjoy a sour taste

Tane Koji / Koji Starter

This Kosher-Certified Koji spore is used by Shochu distilleries in Japan. These spores are Aspergillus luchuensis.

Koji made from White Koji Spores has a sweetness from the rice decomposition and a sour taste from the naturally-occurring citric acid. The color of the spore itself is somewhere between off white to eggshell color, and the finished Koji has a white color and a beautiful appearance.

You can enjoy a sour taste amazake from the Koji made from these spores, which makes a perfect summer drink.

Instructions:
1. First stage (after applying the koji spores): Maintain the koji temperature within 37~38℃

2. First maintenance (18~20hr after applying the koji spores): Maintain the koji temperature within 35~38℃

3. Second maintenance (25~27hr): Maintain the koji temperature within 35~38℃

4. Third maintenance (30~32hr): Bring down the koji temperature within 32~33℃ and maintain the temperature until completion.

5. Completion: 42hrs after applying the koji spores.

*If an incubator was used for the yellow koji spores (such as koji spores for rice, barley and soy source) previously, make sure that you sanitize the incubator very well. Otherwise, if the yellow koji spores leftover exist, yellow koji spores will suppress the black koji spores which also reduces citric acid production. 

When using a wooden incubator, you can spray 70% proof Ethel alcohol, hydrogen peroxide or boiling water, then wipe it and wait until it’s completely dried. 

Size:
20g/0.7oz
(This can be used to make 10kg/22lb of White Koji)

Shelf Life and Storage Information:
The expiration date is printed on the front label. Store at room temperature (59F°-77/ 15℃-25), avoid moisture and direct sunlight. Consume the product soon after opening. Any remaining spores should be sealed well.

About Bio'c:
The oldest koji manufacturer in Japan, Bio'c started as Kojiya Sanzaemon in Kyoto 600 years ago. They are now located in Toyohashi, Aichi prefecture, which is known for its traditional Japanese fermentation of sake, miso, mirin, shoyu and vinegar brewing. Made in a temperature-controlled, clean room of the highest standards, they produce exceptional koji.

 

Attention: 
Do NOT use the resulting koji from this product as a starter to make new koji (Tomo- Koji). Bio'c has collected and studied their Koji since the ancient times. They hold the knowledge of their Koji's characteristics and have confirmed its safety. In addition, Bio'c owns their Koji as their property. Any redistribution of their Koji to a third party is not permitted. We are not responsible for any accidents caused by duplicated Koji. 

*Amazake Co. is an authorized distributor of Bio'c Co., Ltd. in U.S.

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 98506611326

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 15 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
StacyT
Waukegan, US
★★★★★ 5
Best fluffy but firm pillows
Size: King(Pack of 2), Size: King(Pack of 2)
These pillows are worth every penny! They started off pretty flat but after three days they plumped up well. In addition to them being plump, they are also firm. Exactly what I was looking for. You can shake up the internal stuffing if you want them softer too. They were a bit pricey but I’m going to repurchase and replace all my home pillows with these. I do sleep hot and the cooling side is perfect to lay on. Kept me cool and comfortable. I haven’t had any neck or back pain after switching to these pillows too. Absolutely recommend these for your home. The photo shows how full the pillows are. I have four pillows in the picture plus two smaller other brands. These are definitely fluffier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
C
Verified Purchase
Charlie
Pawtucket, US
★★★★★ 5
This Pillow Is A Must Buy!! What Are You Waiting For?
Size: Queen (Pack of 1)
This is, without a doubt, the best pillow I have ever owned. One of my favorite features is the adjustable shredded memory foam fill, which allows you to customize the loft and firmness by adding or removing foam to suit your sleeping preferences. As both a side and back sleeper, I found it incredibly comfortable and supportive. The overall quality is excellent, from the materials used in the pillow itself to the thoughtful packaging. The removable cover is washable, although I personally use a pillowcase to keep it protected. I also appreciated that extra foam is included, making it easy to fine-tune the pillow over time. The difference in my sleep quality was noticeable from the very first night. I’ve been sleeping more comfortably and waking up feeling more rested ever since I started using it. Considering the quality, comfort, and customization options, I believe the $75 price point is well worth it. I am so impressed with this pillow that I plan to purchase another one in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
A
Verified Purchase
ahindris
Pawtucket, US
★★★★★ 5
This is a high-quality, well-designed pillow that combines softness, comfort, and adjustability
Size: Queen (Pack of 1), Size: Queen (Pack of 1)
I purchased the DreamyBlue Signature Adjustable Pillow for my husband because he often experiences back discomfort, and many of the pillows we had previously would become flat and lose their support over time. This pillow has exceeded our expectations. It is incredibly soft, comfortable, and comes with extra filling, which allows you to adjust the firmness to your personal preference. We really appreciated having that option. Even after extended use, the pillow has maintained its shape much better than other pillows we've owned. It provides a plush, cozy feel while still offering good support. My husband finds it very comfortable, and it has quickly become his favorite pillow. This is a high-quality, well-designed pillow that combines softness, comfort, and adjustability. I would definitely recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
C
Verified Purchase
Conway Bolt
Los Angeles, US
★★★★★ 5
Finally Found a Pillow Worth Keeping
Size: Queen (Pack of 1)
I genuinely feel like I’ve tried every pillow on the market. At one point, I thought Amazon was going to flag my account because I bought and returned so many pillows trying to find the right one. This is the only pillow that made the cut. The shredded memory foam filling makes a huge difference because the pillow is both soft and supportive, while still being adjustable to fit the way you sleep. It arrives extremely full and plush, and it even comes with an extra bag of fill, which honestly surprised me. I ended up removing about half of the filling to get it exactly how I wanted it. I’m a side/stomach sleeper, which can make finding a good pillow difficult since most are either too thick or too flat. This one was perfect because I could shape it exactly how I sleep. It stays cool throughout the night, has a slightly heavier premium feel, and feels much higher quality than most pillows I’ve tried. Super comfortable, supportive, and customizable. I would absolutely recommend it and would definitely buy it again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 4
A bit expensive
Size: Queen (Pack of 1)
Waited to give a review on this one because I needed several nights before I had any idea if it was as good as everyone says. I've had a real problem finding pillows lately. Either they're too soft to provide support and I wake up with a stiff neck or they're too sturdy and I wake up with a stiff neck. Contour pillows have worked best for me, but they fall under the category of too sturdy. I also toss and turn too much at night, which means I always end up in an awkward position with contour pillows. So I took a chance on an obscenely expensive pillow, and yes, that is the reason for one less star. I'd happily pay $70 for a pillow I thought was amazing and comfortable and perfect, but this one wasn't quite it. It IS comfortable. I have slept on it for a month now without it making my neck stiff, so it does actually provide a good balance between soft and sturdy. They make it easy to stuff the pillow to your preferred fluffiness and even provide extra stuffing if you need it, which adds to the degree of comfort. While the pillow does provide good neck support, I toss and turn a bit trying to find a comfortable position when I first try to sleep. The stuffing within the pillow moves around at night, most notably shifting to the side and the pillow is notably flatter now than when I first purchased it. You can fluff it out, similarly to a down pillow, but it doesn't seem to retain its shape on its own. In some ways, that's good because what it does instead is try to retain a shape that fits you. So yes, this is a really good pillow. One of the better ones you can buy. But it's really expensive for a pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026

recommand products