Whenever possible, use a cleaning swab to dry the body interior during rests in playing sessions as well. Caring for the mouthpiece After playing your clarinet, be sure to remove the reed, thoroughly dry it and then store it in a safe location. To clean the mouthpiece, insert a small cleaning swab through the joint cork end to remove moisture and dirt. When doing this, be careful not to scratch the tip of the mouthpiece. If the swab catches inside, carefully pull it through a small amount at a time, without forcing it.
Moisture is likely to collect in the joints.
This can cause cracking, so dry the joints carefully using a polishing gauze cloth, etc. Even during playing sessions, make an effort to dry the interior and joints if moisture builds up. Drying the pads Stick a piece of cleaning paper between each pad and tone hole. Fully dry the pad with the paper. Be careful not to move the paper while the key is pressed, as this may damage the pad.