1. Introduction
The IMS E61 Nanotec Precision Shower Screen (Model E61 200 NT) is an advanced component designed to enhance the performance of E61 group head espresso machines. Featuring a non-stick NanoQuartz coating and an integrated 200 µm membrane, this shower screen ensures superior water distribution over the coffee puck, leading to more consistent and flavorful espresso extraction. Its durable Aisi 304 food-safe certified steel construction also contributes to easier cleaning and extended product life.
This manual provides essential information for the proper installation, operation, and maintenance of your IMS E61 Nanotec Precision Shower Screen.
2. Safety Information
- Always unplug your espresso machine from the power outlet before performing any installation or maintenance.
- Allow the espresso machine to cool down completely before handling any internal components, as surfaces can be extremely hot.
- Exercise caution when handling the shower screen and other machine parts, as edges may be sharp.
- Keep small parts away from children.
3. Package Contents
- 1 x IMS E61 Nanotec Precision Shower Screen (E61 200 NT)
4. Specifications
| Brand | IMS |
| Model | E61 200 NT |
| Body Diameter | 57 mm |
| Border Diameter | 60 mm |
| Wall Height (External) | 17 mm |
| Hole Configuration | ø 3 mm, 98 holes each containing 19 micro-holes |
| Material | Aisi 304 Food-Safe Certified Steel |
| Coating | NanoQuartz (non-stick) |
| Integrated Membrane | 200 µm |
| Installation Type | Screw-In (for E61 group heads) |
| Item Weight | 0.02 Kilograms |
5. Setup and Installation
The IMS E61 Nanotec Precision Shower Screen is designed as a direct replacement for standard E61 group head shower screens. Follow these steps for installation:
- Prepare the Machine: Ensure your espresso machine is unplugged and has cooled down completely to avoid burns.
- Remove Old Shower Screen: Locate the screw in the center of your E61 group head's existing shower screen. Using an appropriate screwdriver, carefully unscrew and remove the old shower screen. The group head gasket may also come out with it or remain in the group.
- Clean the Group Head: Thoroughly clean the group head area, removing any coffee residue or old gasket material. A group head brush and a damp cloth are recommended. Ensure the gasket groove is clean.
- Install New Gasket (Optional but Recommended): If you are also replacing the group head gasket, insert the new gasket into the groove in the group head.
- Install New Shower Screen: Place the IMS E61 Nanotec Precision Shower Screen into the group head, aligning the center hole with the screw hole. Gently re-insert and tighten the screw until the shower screen is securely in place. Do not overtighten.
- Test: Plug in your machine, allow it to heat up, and perform a flush to check for proper water flow and any leaks.

6. Operating Instructions
Once installed, the IMS E61 Nanotec Precision Shower Screen operates automatically as part of your espresso machine's brewing process. Its primary function is to evenly distribute water from the group head over the coffee grounds in the portafilter. The NanoQuartz coating and integrated membrane work together to:
- Improve Water Distribution: The precise hole pattern and 200 µm integrated membrane ensure a uniform flow of water, minimizing channeling and promoting a more even extraction.
- Reduce Coffee Residue Adhesion: The non-stick NanoQuartz coating significantly reduces the amount of coffee grounds that stick to the shower screen after brewing, contributing to cleaner operation and easier maintenance.
No special operating procedures are required beyond your standard espresso brewing routine. Enjoy the enhanced consistency and cleanliness this precision shower screen provides.
7. Maintenance
Regular cleaning of your IMS E61 Nanotec Precision Shower Screen is crucial for maintaining optimal performance and hygiene. The NanoQuartz coating makes cleaning easier, but routine care is still necessary.
- Daily Cleaning (Backflushing): Perform a daily backflush with a blind portafilter and espresso machine cleaning detergent according to your machine's instructions. This helps to clear loose coffee oils and particles from the screen and group head.
- Weekly Cleaning (Removal and Scrubbing): For a deeper clean, remove the shower screen as described in the installation section. Rinse it under hot water and gently scrub both sides with a soft brush (like a toothbrush) to remove any stubborn coffee residue. The non-stick coating should make this process straightforward.
- Soaking (If Needed): If significant residue builds up, you may soak the shower screen in a solution of hot water and espresso machine cleaning detergent for 15-30 minutes. Rinse thoroughly with clean water afterward.
- Inspection: Periodically inspect the shower screen for any signs of damage or excessive wear. While durable, replacement may eventually be necessary if performance degrades.

8. Troubleshooting
If you experience issues after installing your IMS E61 Nanotec Precision Shower Screen, consider the following:
- Uneven Water Flow: Ensure the shower screen is installed correctly and securely. Check for any remaining debris in the group head or on the screen itself. Regular cleaning is essential to prevent blockages.
- Leaks Around the Group Head: This often indicates a worn or improperly seated group head gasket. Replace the gasket if necessary, ensuring it is correctly positioned before installing the shower screen.
- Coffee Grounds Sticking Excessively: While the NanoQuartz coating is non-stick, some minimal residue is normal. If excessive grounds are sticking, increase the frequency or thoroughness of your cleaning routine. Ensure your grind size and tamping pressure are appropriate for your machine.
- Difficulty Installing: Verify that you have the correct size shower screen for your E61 group head. Ensure no old gasket material is obstructing the installation.
9. Warranty and Support
For warranty information or technical support regarding your IMS E61 Nanotec Precision Shower Screen, please refer to the documentation provided with your purchase or contact IMS directly through their official website or authorized distributors. Keep your proof of purchase for any warranty claims.