Introduction
This manual provides comprehensive instructions for the proper use, installation, and maintenance of your Neretva 51mm Portafilter. Designed for compatibility with Neretva PE3670U and PE3680 espresso coffee machines, this accessory ensures optimal coffee extraction. Please read this manual thoroughly before use to ensure safe and efficient operation.
Safety Instructions
- Always ensure the espresso machine is turned off and unplugged before installing or removing the portafilter.
- Handle the portafilter with care, especially when hot, to prevent burns.
- Do not use abrasive cleaners or scouring pads, as these can damage the finish.
- Keep out of reach of children.
- Inspect the portafilter and filter baskets for any damage before each use. Do not use if damaged.
Package Contents
Verify that all items are present in your package:
- 1 x 51mm Portafilter (3-ear design)
- 1 x 1-Cup Filter Basket
- 1 x 2-Cup Filter Basket
Setup and Installation
Follow these steps to prepare your portafilter for use:
- Unpack: Carefully remove all components from the packaging.
- Initial Cleaning: Wash the portafilter and filter baskets with warm, soapy water. Rinse thoroughly and dry completely.
- Insert Filter Basket: Select either the 1-cup or 2-cup filter basket. Place the chosen basket into the portafilter head, ensuring it sits flush and securely.
- Attach to Machine: Align the portafilter's three ears with the grooves on your Neretva espresso machine's group head. Insert the portafilter and twist firmly to the right until it is securely locked in place.

Image: The 51mm portafilter securely attached to a Neretva espresso machine, demonstrating proper installation and coffee extraction. This accessory is compatible with Neretva PE3670U and PE3680 models.
Operating Instructions
Once the portafilter is installed, follow these steps for brewing espresso:
- Grind Coffee: Grind fresh coffee beans to an espresso-fine consistency.
- Dose Coffee: Fill the chosen filter basket with the appropriate amount of ground coffee. For the 1-cup basket, typically 7-9 grams. For the 2-cup basket, typically 14-18 grams.
- Tamp: Use a tamper to press the coffee grounds evenly and firmly into the basket. Ensure the surface is level.
- Wipe Rim: Wipe any loose coffee grounds from the rim of the portafilter to ensure a good seal with the group head.
- Attach to Machine: Securely attach the portafilter to the espresso machine's group head as described in the Setup section.
- Brew: Place your espresso cup(s) under the portafilter spouts. Initiate the brewing cycle on your Neretva espresso machine according to its specific operating instructions.
- Remove: Once brewing is complete, carefully remove the portafilter by twisting it to the left. Be cautious as it will be hot.
Maintenance and Cleaning
Regular cleaning ensures optimal performance and longevity of your portafilter:
- After Each Use:
- Remove the used coffee puck from the filter basket.
- Rinse the filter basket and portafilter head under warm running water to remove any coffee residue.
- Wipe dry with a clean cloth.
- Weekly Cleaning:
- Remove the filter basket from the portafilter.
- Soak both the portafilter head and filter baskets in a solution of warm water and a mild, non-abrasive detergent for 15-30 minutes.
- Use a soft brush to scrub away any stubborn coffee oils or residue.
- Rinse thoroughly under running water until all soap residue is gone.
- Dry completely before reassembly or storage.
- Do Not Use: Harsh chemicals, abrasive sponges, or dishwashers, as these can damage the portafilter's finish and components.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Portafilter leaks during brewing. |
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| Coffee flows too fast/slow. |
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| Filter basket difficult to remove. |
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Specifications
- Product Type: 51mm Portafilter with Filter Baskets
- Compatibility: Neretva PE3670U, PE3680U Espresso Coffee Machines
- Material: Aluminum (Portafilter), Stainless Steel (Filter Baskets)
- Basket Sizes: 1-Cup, 2-Cup
- Ear Design: 3-Ear
Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your original Neretva espresso machine or contact Neretva customer service directly. This accessory is designed as a replacement part, and its warranty may be covered under the terms of the original machine or as a separate accessory purchase.
For further assistance, please visit the official Neretva Store on Amazon.



