How to Clean a French Horn Mouthpiece
Updated Nov 13, 2026 · By 
Jonah Mercer · Editorial policy
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Remove the mouthpiece from the horn, rinse it in warm water with a drop of mild soap, brush through the shank, then dry it with a soft cloth before you put it back. The mouthpiece comes off the leadpipe, so it can be cleaned on its own without touching the rest of the horn.
Remove the mouthpiece from the horn
Hold the horn steady with one hand and pull the mouthpiece straight out of the leadpipe with the other. Do not twist it hard or pull at an angle. Set the mouthpiece on a soft cloth so the rim and the shank do not pick up grit from a hard surface.
Rinse the mouthpiece in warm water
Run warm water through the mouthpiece and over the outside, so water passes through the shank and out the rim. Add a small amount of mild soap and work it through with your fingers. Rinse again with clean warm water until the soap is gone.
Brush through the shank and the cup
Push a mouthpiece brush into the shank and through to the cup, then pull it back out. Repeat until the brush comes out clean. Rinse the mouthpiece once more so any loosened residue washes away.
Dry the mouthpiece before it goes back
Wipe the outside and the rim with a soft dry cloth, then hold the mouthpiece up and look through the shank to check that no water sits inside. Let it air dry if any moisture is left. Push it back into the leadpipe with a gentle turn once it is dry.
Wipe the mouthpiece after each use
After you finish playing, wipe the rim and the outside with a soft dry cloth before the mouthpiece goes back in the case. A quick wipe keeps moisture and residue from sitting on the metal between full cleanings.
What you need
ROWELL Double French Horn 4 Keys Gold
A double French horn in F/Bb with a mouthpiece, a case, gloves and a polishing cloth, so the mouthpiece and the cloth for wiping it arrive together.
- Case or gig bag included
- Mouthpiece included
- Key: Bb
- Finish: Gold Lacquer
ROWELL Single French Horn 3 Keys Gold
A single French horn with a silver-plated mouthpiece, a case, gloves and a polishing cloth, so the mouthpiece and its wiping cloth come in the same box.
- Case or gig bag included
- Mouthpiece included
- Finish: Gold Lacquer
TianChunyue Double French Horn
A double French horn with a mouthpiece and a cleaning kit holding a cleaning cloth and a brush, plus gloves and step-by-step instructions.
- Case or gig bag included
- Mouthpiece included
- Key: Bb
- Finish: Gold Lacquer
Chehery Double French Horn F/Bb 4 Keys Gold
A double French horn kit with a mouthpiece, a cleaning brush, a polishing cloth and gloves, covering the pieces used to clean the mouthpiece.
- Case or gig bag included
- Mouthpiece included
- Key: Bb
- Finish: Gold Lacquer
- 2-year warranty stated
These come from our ranked list Best French Horn for Home, which compares them spec by spec.
Frequently asked questions
How often should I clean a French horn mouthpiece?
Clean it when the inside looks dull, the rim feels rough, or the sound no longer responds as it did. A mouthpiece that is played every day needs attention sooner than one played now and then.
Can I use soap on a French horn mouthpiece?
Yes. Warm water and a small amount of mild soap wash the inside and the outside, and a rinse with clean warm water takes the soap away. Dry the mouthpiece with a soft cloth before you put it back.
What do I do if the mouthpiece is stuck in the horn?
Do not force it or use tools on it. Ask a repair shop to remove it, since forcing a stuck mouthpiece can damage the leadpipe and the mouthpiece.
More how-to guides
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