These mugs are safe to use in dishwashers & microwaves. However, there is a small possibility with any product like this, that prolonged usage over time in a dishwasher or microwave may start to effect the design. Very high temperatures, hard water & harsh detergents may cause the design to fade/peel over time.
We have personally not experienced this with any of our own mugs that we use, but it is a possibility that we want our customers to be aware of. If you have major concerns, it's best to simply scrub the interior of your favorite mug down with some warm water & a light dish detergent instead before letting it dry completely (this is good practice for all cups & mugs, not just ours). It's also a good idea to rinse your mugs shortly after use to help prevent staining, particularly from tea & coffee.
If you have any questions, please get in touch with us.
