Boiling water: This is the most common method and is very effective at killing bacteria. Simply bring a pot of water to a boil and then drop the reed in for about 10 seconds. Be careful not to leave the reed in the water for too long, as this can damage it.
Alcohol: You can also use alcohol to sanitize a clarinet reed. Simply dip the reed in a cup of alcohol for a few seconds. Again, be careful not to leave the reed in the alcohol for too long, as this can damage it.
Reed Sanitizer: There are also commercial reed sanitizers available that you can use. These products are typically made with a combination of alcohol and other ingredients that are safe for use on clarinet reeds.
Antibacterial soap: You can also use antibacterial soap to sanitize a clarinet reed. Simply wet the reed and then apply a small amount of soap to it. Rub the soap around on the reed for a few seconds and then rinse it off thoroughly with water.
Whichever method you choose, be sure to dry the reed thoroughly before using it.