Sage the Dosing Funnel

With the Sage the Dosing Funnel, you can tamp the coffee straight into your portafilter. You place this attachment on a 54mm Sage portafilter. This accessory helps you to tamp straight. This way, you won't make a mess on your counter or spill any coffee. Once you've pushed the coffee well, you remove the attachment from the portafilter. That's because it won't fit in the espresso machine. Could the attachment use some cleaning? Clean it under the faucet or in the dishwasher.