It may be put in the dishwasher but to prolong the life of your ceramics we recommend hand washing.
It is important that you let boiling water settle (stop bubbling) before pouring it into a tableware item. Therefore avoid using boiling water directly from a Quooker or from a kettle.
If the item is cold its suggested to pre-heat it with hot tap water. Pouring boiling water directly into a cool handmade cup, bowl or mug may cause the item/ glaze to crack.
The cracks will not affect the life cycle of the product and glaze will not fall off.