Your Dopper can best be cleaned by soaking it in warm water with washing soda (no temperatures over 65°C!) and then treating it with table vinegar.
It is important to properly dry and air your Dopper after use and cleaning. Never store it away closed, but always leave off the cap and the cup.
Check our instructions for use to make sure that you'll use the Dopper in the future with the exact amount of tender love & care!