The Rattleware 58mm Magnetic Aluminum Dosing Ring is a portafilter accessory designed for 58mm group heads, helping baristas dose ground coffee accurately and with minimal mess. A built-in magnetic attachment holds the ring firmly against the portafilter basket during dosing, so it stays put without manual pressure. The ring is machined from aluminum, keeping it lightweight while standing up to the repetition of a busy coffee station.
Dosing rings exist to solve one specific problem: grounds scattering across the portafilter rim and onto the counter during distribution. The Rattleware ring's 58mm fit leaves no gap between ring and basket, so grounds stay where they belong. Less cleanup between shots means faster workflow, whether you are dialing in at home or pulling back-to-back shots during a service rush.
The magnetic attachment is what separates this ring from a simple collar. It seats against the portafilter and stays there without being held, freeing both hands for distribution or WDT work. When dosing is done, the ring lifts away cleanly rather than requiring a twist or pry.
Aluminum keeps the ring light enough that it does not add noticeable heft to the portafilter during use, while remaining rigid enough to hold its shape through daily handling. The material also resists the minor moisture exposure common at an espresso station.
| Specification | Value |
|---|---|
| Portafilter compatibility | 58mm |
| Material | Aluminum |
| Attachment type | Magnetic |
| Packaged dimensions | 4 x 4 x 2 in |
The Rattleware 58mm Magnetic Dosing Ring suits home baristas and cafe staff who use a 58mm portafilter and want to reduce grounds scatter during dosing and distribution. It fits naturally into any workflow that includes a WDT tool, distribution tool, or hand-leveling step before tamping.
This ring is sized specifically for 58mm baskets and will not fit 54mm, 53mm, or other portafilter diameters. It is a dosing and distribution aid only and does not function as a tamper, distributor, or puck screen.
The Rattleware Magnetic Aluminum Dosing Ring is designed specifically for 58mm portafilters. It will not fit smaller basket diameters such as 54mm or 53mm. If your machine uses a non-58mm group head, this ring is not compatible.
The dosing ring uses a built-in magnet to attach directly to the portafilter basket rim, holding itself in place without requiring the barista to hold it steady. Once dosing and distribution are complete, the ring lifts away without twisting or prying.
The Rattleware dosing ring is made from aluminum, which keeps it lightweight. Aluminum is among the lighter metals used in espresso accessories, and the ring adds minimal mass to the portafilter during normal dosing and distribution steps.
The Rattleware 58mm Dosing Ring is a dosing and distribution aid only. It does not function as a tamper, distribution tool, or puck screen. Those accessories are separate purchases and are not included with this ring.
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.
Order Confirmation:
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.
You will receive an email containing the tracking information of your order after the order has been shipped to your location. If you do not receive tracking information from us within seven business days of the lead time specified on the product page, feel free to follow up with us at support@coffeeroastco.com.
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.
Before returning any product, you MUST obtain a return authorization from a Coffee Roast Co. customer service representative. We can only process AUTHORIZED returns for items.
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.
We stand behind our products 100%!
By purchasing any of our items, the buyer certifies they have read and agree to our shipping, return, and privacy policies.
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.
We want you to be able to make your purchase with us in confidence. Putting our money where our mouth is, we offer you a price guarantee on all orders. If you find out within six months from your purchase of an item from CoffeeRoast Co. was offered at a lower price than us from the time of purchase, we will refund the difference.
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.
Terms and Conditions of our 100% Price Guarantee:
