- Description
- Specification
- Shipping & Returns
Precision-crafted for those who care how things fit — and why that matters.
Created by a detail-obsessed coffee brewer, the Prism addresses a subtle but significant issue: inconsistent filter alignment. Made from durable Tritan™, The Prism is a refined answer to that problem — thoughtfully engineered for reliability and ease of use. It comes in also two editions — Conical and Flat Bottom — each designed to fit a wide range of today’s most popular drippers. A tool born from brewing frustration, and perfected for those who care about every step of the process.
What does it do?
The Prism securely holds your paper filter flush against the dripper walls — minimizing air gaps, misalignment, or filter collapse. The result? A more consistent flow rate, even extraction, and cleaner cup clarity — without needing to fiddle every time you brew.
Key Features
Material That Lasts Under Heat
Molded from Eastman Tritan™, the Prism withstands temperatures up to 109°C. It’s durable, food-safe, and heat-stable .
20-Rib Support Structure
The internal ribs align with pleated filters, supporting their shape during pre-wetting and brewing. This reduces filter collapse and maintains a uniform coffee bed — essential for even water dispersion.
Clear and Unobtrusive
Transparent finish offers a clean, professional look that integrates visually with any brewing setup. No distractions, just functional beauty.
Made for Daily Rituals
For those who carefully fold, rinse, and prep — the Prism becomes an essential part of your brewing workflow. Not flashy. Just quietly reliable.
- Materials: Eastman Tritan™ (BPA-free, food-grade)
- Color: Clear Transparent
- Size Options
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Conical Edition:
Max Ø 7.8cm / Min Ø 3.5cm — compatible with most 60° drippers including Cafec Flower Dripper, Origami Dripper, Kōno Dripper, April Brewer, Nou& Dripper, Kalita 185 Dripper. -
Flat-Bottom Edition (Right-Angle):
Max Ø 6.6cm / Min Ø 4.2cm — designed for Orea Dripper, Kalita 155 Dripper, and similar flat-bed brewers (right-angle).
-
Conical Edition:
(Not sure which edition fits your brewer? Just send us a message — we’re happy to help.)
- Origin: China
- Materials: Eastman Tritan™ (BPA-free, food-grade)
- Colour: Clear Transparent
- Size Options
Conical Edition: Max Ø 7.8cm / Min Ø 3.5cm — compatible with most 60° drippers including Hario V60, April, Nou&, Kalita 185.
Flat-Bottom Edition: Max Ø 6.6cm / Min Ø 4.2cm — designed for Orea, Kalita 155, and similar flat-bed brewers.
Shipping
Order Processing
Orders are processed and dispatched Monday to Friday, excluding Dutch public holidays.
Once your order has been dispatched, you will receive a shipping confirmation with tracking information where available.
Delivery times shown below are estimates after dispatch and are not guaranteed. Delays caused by carriers, customs clearance, local authorities or other circumstances outside our control may occasionally occur.
Estimated Delivery Times
Netherlands
Usually 1–2 business days after dispatch.
Europe
Usually 1–5 business days after dispatch, depending on the destination.
United States & Canada
Usually 4–14 business days after dispatch.
Orders Outside the European Union
Orders shipped outside the European Union, including orders to the United Kingdom, may be supplied without EU VAT where applicable.
Import VAT, customs duties, brokerage charges and other local import fees are not included in our prices or shipping charges unless explicitly stated otherwise at checkout.
Any such charges imposed by the destination country are the responsibility of the recipient.
Customs procedures may also extend the estimated delivery time.
Incorrect or Incomplete Delivery Address
Please check your shipping address carefully before completing your order.
If a parcel is returned to us because of an incorrect or incomplete address, refusal of delivery, or failure to collect the parcel, additional shipping costs may apply before the order can be sent again.
Returns
14-Day Right of Withdrawal – EU Consumers
If you are purchasing as a consumer, you normally have the legal right to withdraw from an online purchase within 14 days without providing a reason.
The 14-day withdrawal period starts on the day after you, or a person designated by you, receives the goods. If one order is delivered in several shipments, the period starts after receipt of the final item.
To exercise your right of withdrawal, please inform us within this 14-day period through our online withdrawal function or by contacting us at info@kohiraifu.com and clearly stating that you wish to withdraw from your purchase.
Please include your order number whenever possible.
After notifying us of your withdrawal, you have a further 14 days to send the goods back.
Return address:
Kohiraifu
Noordkade 68
2741 EZ Waddinxveen
Netherlands
For change-of-mind returns, the direct cost and risk of returning the goods are the responsibility of the customer. We strongly recommend using a tracked shipping service and keeping your proof of shipment.
Condition of Returned Products
You may inspect a product to the extent reasonably necessary to establish its nature, characteristics and functioning, similar to what would normally be possible in a physical shop.
Please return the product complete, including its accessories and, wherever reasonably possible, its original packaging.
If a product has been handled or used beyond what is reasonably necessary to inspect it and this results in a reduction in value, we may deduct the corresponding diminished value from the refund.
Refunds During the 14-Day Withdrawal Period
For a valid withdrawal of the complete order, we will refund:
- the purchase price of the returned products; and
- the cost of our least expensive standard delivery option originally available for the order.
Additional delivery charges resulting from choosing a more expensive delivery method, such as express shipping, are not refundable.
If only part of an order is returned, the original delivery charge is not refunded.
The direct cost of returning the order to Kohiraifu is the responsibility of the customer unless the product is faulty, damaged, incorrect, or we have agreed otherwise.
Refunds will be made using the original payment method. We may withhold the refund until we have received the returned goods or until you provide evidence that the goods have been sent back, whichever occurs first.
Voluntary Returns – Up to 30 Days
In addition to your statutory rights, Kohiraifu may accept eligible products for return for up to 30 days after delivery.
Returns requested after the statutory 14-day withdrawal period are part of our voluntary return policy and require prior approval.
For returns between day 15 and day 30:
- The product must be unused, complete and in resalable condition, preferably with its original packaging.
- The customer is responsible for the return shipping costs.
- Original shipping charges are not refundable.
We reserve the right to decline voluntary returns that do not meet these conditions.
This voluntary return policy does not limit any statutory consumer rights.
Coffee, Matcha, Food & Consumable Products
Certain statutory exceptions to the right of withdrawal may apply to products that deteriorate or expire rapidly, or to sealed products that are not suitable for return for health or hygiene reasons once their seal has been broken.
Opened coffee, matcha, food products and other consumable products cannot be accepted under our voluntary return policy once opened or used.
This does not affect your rights if the product supplied is faulty, damaged, incorrect or otherwise does not conform to your order.
Damaged, Faulty or Incorrect Products
If your order arrives damaged, faulty, incomplete or different from what you ordered, please contact us as soon as reasonably possible at info@kohiraifu.com.
Please include:
- your order number,
- a description of the issue, and
- photos or video where this can help us assess the problem.
Please keep the product and its original packaging until we have reviewed the case.
Where the product is confirmed to be faulty, damaged or incorrectly supplied, Kohiraifu will arrange an appropriate solution and cover reasonable return shipping costs where a return is required.
Your statutory warranty and conformity rights are not affected by this policy.
Exchanges
If you would like a different product, colour or variation, please contact us first.
Depending on the product and stock availability, we may arrange an exchange or ask you to return the original product and place a new order.
Wholesale & Business Orders
The statutory consumer cooling-off period does not apply to purchases made for business or professional purposes.
Wholesale and other B2B returns are therefore subject to separate conditions and require prior written approval from Kohiraifu.
This does not affect claims relating to products that were damaged, faulty or incorrectly supplied.
Questions About a Return?
Kohiraifu
Email: info@kohiraifu.com
Phone / WhatsApp: +31 (0) 6 27 56 08 25
Please include your order number so that we can assist you more quickly.


















