How to Use a Magnetic Dosing Ring for Mess-Free Coffee Dosing

Quick answer

A magnetic dosing ring attaches to your 58mm portafilter to create a raised collar, keeping grounds contained and improving dosing consistency with less mess.

Step-by-step: Using a magnetic dosing ring

1. 1. Attach the dosing ring: Place the magnetic dosing ring onto your clean, dry 58mm portafilter. The magnets will hold it in place. Ensure it sits flush against the basket rim. Common mistake: using a wet portafilter can reduce magnetic grip. Dry the rim before attaching.
2. 2. Grind coffee into the portafilter: Position the portafilter under your grinder and dose the desired amount of coffee. The ring contains the grounds, preventing spillage. Checkpoint: avoid overfilling. Leave enough space for the ring to be removed before tamping.
3. 3. Distribute the grounds: Use a distribution tool or a gentle stir to level the coffee bed inside the ring. This improves extraction consistency.
4. 4. Remove the dosing ring: Carefully lift the ring straight up. The magnets release easily. Some grounds may cling to the ring; tap it lightly over the sink or knock box. Common mistake: twisting or tilting the ring can knock grounds onto the counter. Lift straight up.
5. 5. Tamp and brew: With the ring removed, tamp the coffee bed as usual. The clean basket rim ensures a good seal with the group head. Proceed to brew.

Product facts

• Graef Magnetic Dosing Ringe: The Graef Magnetic Dosing Ring is a practical espresso accessory designed for use with 58mm portafilters. It helps keep ground coffee contained during dosing, reducing mess and improving consistency when grinding directly into the portafilter. This means you can grind straight into the portafilter without losing grounds over the edge, and the magnetic hold keeps the ring stable while you work.