The Doppers are suitable for cleaning in the dishwasher up to a temperature of 65°C. If this temperature is exceeded, the Dopper may deform (which will probably not show immediately), which may cause it to leak.
The Dopper consists of 3 parts. They can easily be taken apart for cleaning purposes.
Be aware of your fingers! Our Steel Doppers can be a bit hot when the dishwasher just did his duty.