Just take all the water out of the duck as good as possible. The rubber duck can also be easily dried from the outside with a towel. From time to time you should also clean the inside of our ducks, which contributes to a long shelf life. Mix some white vinegar with water, squeeze the duck and let it suck up the liquid.

Mix some vinegar cleaner with water, squeeze the duck and let it suck up this liquid. Afterwards the rubber duck should be shaken well. Repeat this process several times. Then squeeze out the vinegar-water mixture.