Note:Please store these clarinet reeds in a dry, ventilated and cool place for long term use, remember to rinse them with water and dry them in time after each use; you can also use a bag to store them for a long time. How often should I replace reeds? For Professional 1. When you practice for a long time, your reeds will naturally wear out faster (replace them once every 10 days of practicing). 2. If the reed is used for a little longer, the tone produced will not be up to the performance effect, so it needs to be replaced (the performance usually needs to be replaced within three days). For Amateur The use of time is relatively long, because the practice time is short, just need to protect the reed does not touch the injury, with a month is possible, a time to prepare 2-4 pieces of clarinet reeds in turn to use, you can make the reed to use longer time. When to replace the reed 1, when you find that the reed is not good to blow, the tone is not right, less use of the reed will stick to the head of the flute, it means that the reed has become soft, you need to replace it. 2. When the tone of the reed drops significantly, it is time to replace the reed.