Transform your espresso grinder with the ARO Espresso Single Dose Hopper. Engineered for compatibility with Breville/Sage Barista Express, Pro, Touch, and Impress integrated grinders, our single dose hopper eliminates coffee bean retention and stale grounds. Featuring a low-profile and sleek hopper, a robust silicone bellows, and an anti-popcorning weight, it ensures the freshest grind, every time. Say goodbye to old, stale grounds and savor the full flavor and aroma of freshly ground espresso. Durable Silicone Bellows: Made from 100% food-grade silicone, the bellows features a smooth matte black finish that resists dust buildup. Designed for high-volume airflow, it effectively purges your grinder of retained grounds offering tens of thousands of pumps without wear. Plus, it doubles as a convenient dosing cup, making it easy to measure and weigh your beans! Anti-Popcorning Weight: Prevents "popcorning" and enhances grind consistency and quality throughout the entire grind, down to the last bean. The weight simulates a full hopper, forcing the beans into the grinder burrs and preventing them from jumping out. Designed with integrated air channels, it accelerates your workflow for a seamless grinding experience. No need to remove the weight after grinding – simply leave it in the hopper, pump the bellows to purge the grinder, and leave it for your next cup! Zero Retention O-Ring and Outer Burr Seal: Featuring a precision O-ring embedded in the hopper and an additional outer burr seal, these thoughtful details ensure optimal airflow through your grinder, eliminating coffee bean retention and stale grounds making each grind as perfect as the last. Effortless Installation and Easy Operation: Utilizes an innovative lock ring design for effortless installation. Simply drop the lock ring into the grinder inlet, add the hopper, and rotate clockwise to securely lock everything in place and engage the grinder safety trigger. Seamlessly integrates with Breville/Sage Barista Express, Pro, Touch, Express Impress, and Touch Impress espresso machines. Don't miss out on the ultimate upgrade for your espresso machine! Support small business: ARO Espresso is a family-owned business nestled in the heart of Seattle, Washington, USA. Our dedication to superior quality, function, and style is more than a promise — it's a principle we uphold in every aspect of our design and manufacturing processes! Installation Instructions

1. Prepare Your Grinder: Remove the original hopper and clean out all old beans and grounds. We recommend using a vacuum cleaner to ensure the grinder inlet is completely free of debris. Note: Do not use water, as it can rust the grinder burrs.

2. Insert the Outer Burr Seal: Place the seal around the outer burr and ensure the "UP" side is visible. Align the triangular tab with the wire on the outer burr and press it in until flush with the grinder inlet.

3. Insert the Lock Ring: Remove the lock ring from the hopper, align the tabs with the slots in your grinder inlet, and drop the lock ring on top of the seal. Press down firmly to fully seat the lock ring so that the flexible arms are aligned with the holes in the side of the grinder inlet.

4. Attach the Hopper: Align the hopper tabs with the locking ring slots and place the hopper into the lock ring. Press down, and twist clockwise until the "ARO Espresso" logo is at the 6 o'clock or 12 o'clock position and the grinder safety trigger engages. This may require some force as the O-ring creates a seal on the grinder inlet. You can use the aluminum arms inside of the hopper that hold the anti-popcorn baffle for better grip.

To remove the hopper, simply twist it counterclockwise until it releases from the orange lock ring. Then remove the orange ring and seal. You may need to pull back the arms on the lock ring to release them. Setting your grind size to the finest setting will also assist with removing the hopper as it lowers the outer burr and relieves any pressure on the lock ring.

Please send us a message if you need any assistance with installation or removal!

Usage Instructions
1. Load the Beans: Weigh out your preferred dose and pour your beans into the hopper. Tip: the silicone bellows can be used for easy measurement and transfer of your beans!
2. Place the Anti-Popcorning Weight: Set the weight on top of the beans.
3. Set the Bellows: Place the silicone bellows on top of the hopper.
4. Grind: Press the grinder trigger to start grinding.
5. Purge the Grinder: Once grinding is complete, pump the silicone bellows to purge the grinder. This works best while the grinder is spinning; restart the grinder if needed or adjust the grind time to ensure all beans are ground and there is extra time to purge the grinder. Don't be afraid to give it some aggressive pumps and be sure to use the palm of y