“Keep Calm and Carry On” mug – a British classic in the Union Jack design

This will keep your prints brilliant for a long time:

• Gentle hand washing is recommended, especially for bright colors or large designs.
• Use mild dish soap – no abrasive sponges.
• For longer shelf life: avoid direct heat exposure (e.g., in a microwave).
• Do not place in the oven or on the stovetop.
• Allow to dry thoroughly after rinsing.
  

A notice:

Many mugs are technically dishwasher safe, but hand washing = best colorfastness in the long run .