Bellow / Bumper Lid for Eureka Mignon

In single-dose setups, coffee grounds often remain in the grinder after grinding.

This often leads to:

• Retention in the grinder
• unnecessary coffee loss
• mixed coffee varieties
• inconsistent results

This bellow/bumper lid was developed precisely for this purpose.

It simultaneously serves as:

• Lid for the single-dose container
• Dosing aid for filling beans
• Air bellow for blowing out the grinder

The beans can be weighed directly in the container and then sealed with the lid.

After grinding, the flexible bellow can be compressed to push air through the grinder and blow out any remaining coffee grounds as much as possible.

This reduces the amount of residual coffee left in the grinder.

Daily Use

1. Weigh beans
2. Fill into the single-dose container
3. Close with the bellow
4. Grind
5. Then compress the bellow

Ideal for:
• Single-dosing
• frequent bean changes
• minimal retention

Advantages

• reduces remaining coffee grounds
• combines lid and bellow
• supports fresher grinding processes
• practical for single-dose workflows
• easy to use

Compatibility

Suitable for:
• Eureka Mignon Single-Dose Hopper

Printing Tips

Recommended Material

• TPU recommended for the flexible bellow
• Hardness depending on desired flexibility

Print Settings

• Layer height: 0.2 mm
• reduced print speed recommended
• no support required

Note

This model is designed as a compatible accessory and is not affiliated with the manufacturer Eureka.

If you print the model, I would appreciate feedback on different TPU hardnesses or retention results.