The Hario Walnut Series Ceramic Coffee Mill is a hand-crank manual grinder built for home brewers who want consistent, adjustable grinding in a grinder made from walnut wood, ceramic, and stainless steel. The tall-profile body pairs a matching dark walnut hopper and canister with a cast aluminum alloy handle, and the grinder is made in Japan. The hopper holds approximately 30 g of coffee beans per session.
The Walnut Series mill uses conical ceramic burrs, which shave coffee beans rather than cracking or smashing them the way blade grinders do. Because ceramic transfers less heat than steel during grinding, the beans reach the catch canister without the thermal stress that can dull volatile aromatics. The grind setting is adjustable and holds its position for repeat use, so a setting dialed in for a V60 or French press stays put between sessions without re-calibration.
The body and handle grip are walnut wood, giving the mill a solid feel and a warm look that holds up to daily handling. The shaft and spring are stainless steel for durability at the core of the mechanism, while the cast aluminum alloy handle provides more leverage and a cleaner profile than a plastic alternative. An anti-slip urethane sticker on the base keeps the canister stable on a countertop while grinding. The lid is methacrylate resin, and the lower O-ring is silicone rubber to keep grounds contained.
| Specification | Detail |
|---|---|
| Dimensions | W 164 x D 81 x H 215 mm |
| Weight | Approx. 400 g |
| Hopper capacity | Approx. 30 g of coffee beans |
| Burr type | Conical ceramic |
| Body and handle grip | Walnut wood |
| Handle | Aluminum alloy |
| Shaft and spring | Stainless steel |
| Lid | Methacrylate resin |
| Inner hopper | Polypropylene |
| Burr holder, grind adjustment nut, washer | Nylon |
| Lower O-ring | Silicone rubber |
| Anti-slip sticker | Urethane resin |
| Origin | Made in Japan |
The Hario Walnut Series mill suits home brewers who grind one or two portions at a time and want a grinder that looks as considered as the rest of their brew setup. The approximately 30 g hopper capacity covers a standard single or double pour-over dose, and the adjustable ceramic burrs work across a range of brew methods from espresso-adjacent to coarse filter.
The Walnut Series mill is not suited to grinding large batches in a single session; the roughly 30 g hopper capacity is a per-fill limit, not a daily-volume rating. This is a manual hand-crank grinder and does not have a motor or electric drive of any kind.
The Hario Walnut Series Ceramic Coffee Mill has a hopper practical capacity of approximately 30 g of whole coffee beans per fill. That covers a typical single or double pour-over dose. For larger batches, the hopper would need to be refilled and ground in multiple passes.
The Walnut Series mill uses conical ceramic burrs. Ceramic burrs transfer less heat during grinding than metal alternatives and shave beans rather than cracking them, which produces a more consistent particle distribution. The grind setting is adjustable and holds its position, making it repeatable across brew sessions.
The Hario Walnut Series Ceramic Coffee Mill is a fully manual, hand-crank grinder. It has no motor or power source. Grinding is done by turning the cast aluminum alloy handle by hand, which makes it suitable for travel or use anywhere without access to an outlet.
The Hario Walnut Series mill's body and handle grip are walnut wood; the burrs are ceramic; the shaft and spring are stainless steel; the handle is aluminum alloy; the lid is methacrylate resin; and the inner hopper is polypropylene. The lower O-ring is silicone rubber and the base carries a urethane resin anti-slip sticker. The grinder is made in Japan.
At CoffeeRoast Co., we are passionate about coffee. Every piece from our catalog is designed and rigorously tested to make sure you get perfect and consistent roasts every time.
We’ve partnered with various manufacturers that operate around the globe under a strict set of guidelines both on a local and corporate level so that when you shop with us, you will be able to select from the highest quality coffee roasters and coffee equipment available on the market.
Whether you are a coffee enthusiast or a small business owner, you're sure to find whatever so you have the perfect roast you've been looking for.
Any questions or concerns? Please call us at (312)-298-9262 or email us at support@coffeeroastco.com and a member of our professional support team will be in touch with you as soon as possible.
CoffeeRoast Co. will ship orders as soon as possible in the order they are received. If you purchase multiple items, they will be shipped to you based on lead time and availability. This way you get as much of your order as soon as possible, which means that your order may come in separate packages, especially if you order products from different brands.
We will pay shipping for products returned due to product defect, misrepresentation, or false description. Afterward, we will initiate a full reimbursement should you decline an offer to replace the item with the same item of equal value and assured quality.
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As soon as you place your order with CoffeeRoast Co. you will receive an order confirmation e-mail. This means that your order has been logged in our system and your credit card has been pre-authorized for the purchase. We then work with our partners to confirm and prepare your order for shipment. If any item you order is on backorder or unavailable for whatever reason, we will cancel the credit card authorization and duly inform you via e-mail.
Order Shipment:
Orders are shipped within five business days from the date you place your order unless specified otherwise on the product page. The product page will contain the most accurate estimate on shipping and lead times. Shipping and lead times provided on the product page are our best estimates based various factors including order volume, information from our partners, shipping issues, etc., and may vary due to these factors.
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Damages:
We will take full responsibility for any obvious damage to your product caused by packaging or delivery of an already defective product. Please carefully inspect the packaging of your item(s) when they arrive, if you notice any damage or defects, you should document them when signing for delivery. If the item(s) contained in the package arrives damaged, please send photos to support@coffeeroastco.com, and we will process an insurance claim on your behalf.
Returns and Cancellation Policy:
We back all our products with a customer satisfaction guarantee, so we've created a fair return and cancellation policy.
In most cases, once the order is processed, it is final and not cancellable due to the larger nature of these products. Requests for returns/exchanges after the item has been delivered will be evaluated on a case by case basis. Any return request is subject to an administrative and cancellation fee equal to 10% of your order with a minimum of $35.
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To make a Return or Exchanges:
Return or exchanges request submission must be within 14 calendar days upon receipt of shipment unless noted otherwise on the product description page. Your return must be in original packaging and unused.
We encourage using USPS flat-rate shipping in returning products to receive a shipping expense refund. Buyers must ensure all returned parcels delivery receipt AND signature confirmation. We highly recommend insuring your parcel as we cannot issue a refund for an item that we do not receive back should it get lost/damaged during transit.
Refunds:
Should an item be returned because it was defective, misrepresented, not as described, etc., CoffeeRoast Co. will issue a full refund and will reimburse the customer for all shipping expenses associated with the return.
Please allow 5-10 business days from the time the returned item is received to process a refund. Refunds will only be issued to the original form of payment that you used when placing your order.
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At CoffeeRoast Co., we ensure that you get the absolute best prices for coffee roasters, all while ensuring the highest quality. As always, high-quality roasters do not come cheap, but we ensure that they are reasonably priced using our exclusive contracts with the best coffee roaster manufacturers.
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To get a refund, all you need to do is e-mail us a link to the product on our website and the same product on our competitor’s website within six months from the date of your purchase, and we will process the refund accordingly.
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