How to Replace the AeroPress Original XL Plunger Seal
By AeroPress Coffee Makers | The French Press Alternative | Published: 2026-10-26
Category: How-to Guides
Learn when and how to replace the AeroPress Original XL plunger seal, plus tips to extend its life and keep your brews consistent.
Quick answer
Replace the AeroPress Original XL plunger seal when you notice leaks, resistance changes, or coffee grounds in your cup. The replacement plunger includes a new food-grade silicone seal and takes about two minutes to swap.
Why the seal wears out
The food-grade silicone seal on your AeroPress Original XL is designed to last, but it does wear down over time. Frequent brewing, high heat, and leaving the plunger compressed can accelerate wear, leading to a loose fit or leaks.
If you notice coffee bypassing the seal or the plunger becoming harder to press, it's a clear sign the seal needs attention. Replacing it restores the proper seal and ensures consistent extraction.
Choosing the right replacement part
For the AeroPress Original XL, you need the specific plunger and seal designed for that model. The AeroPress Original XL Plunger Including Seal is a direct replacement that includes the plunger and a new food-grade silicone seal gasket.
Using a non-XL seal or a generic part may not fit correctly, leading to poor performance. Always confirm compatibility with your XL model before purchasing.
Step-by-step replacement guide
- Remove the old plunger: Press the plunger all the way through the chamber to eject any used coffee grounds. Then pull the plunger out of the chamber. If the seal is stuck, twist gently while pulling. Do not force it—twisting helps release the seal without damaging the chamber.
- Detach the old seal: Hold the plunger with one hand and grip the edge of the silicone seal with the other. Gently pull and roll the seal off the plunger's base. If it's tight, use a soft cloth for extra grip. Check the old seal for cracks or deformation—this confirms why replacement was needed.
- Attach the new seal: Align the new seal's groove with the plunger's base. Press it on evenly, working your way around to ensure it sits flush. The seal should lie flat and not twist. Make sure the seal is fully seated—an uneven seal can cause leaks.
- Test the plunger: Insert the plunger into the empty chamber and press down. It should move smoothly with slight resistance, and no air should escape around the seal. If it feels loose or air leaks, remove and reseat the seal. A proper seal creates a gentle vacuum—this is your checkpoint for a successful replacement.
- Store correctly to extend seal life: After brewing, always eject the used coffee right away and store your AeroPress with the seal pushed all the way through the chamber. This keeps the seal free of compression and helps it last longer. Storing with the seal compressed can cause premature wear—avoid it.
Replacement part at a glance
- AeroPress Original XL Plunger Including Seal: This replacement plunger includes a food-grade silicone rubber seal gasket specifically for the AeroPress XL coffee maker. It ensures a proper fit and safe, food-contact material for your brews, so you can swap the worn seal with confidence.
AeroPress Original XL Plunger Including Seal
