Saltware cannot be washed under flowing water or dishwasher.
For cleaning use soft dump cloth. Don’t scratch or use abrasive fabrics.
Only metal parts which can be separated, may be cleaned with warm (even hot) water.
Put the metal part in a bowl and pour hot water on it. Take out with a spoon (as the metal may become hot) and dry thoroughly with soft cloth or paper immediately after.
If the candles you have used have been dripping immensely, you can try putting the metal seats ONLY in freezer for couple of hours.
It helps detaching the wax from the metal. Use tooth stick or you finger tips. Make sure not to use sharp tools, as they would scratch the seats.
Do not put the candles on the salt-made parts-always use the metal seats.