Whether pottery mugs can go in the dishwasher depends on their specific glaze and the manufacturer's recommendations. Here are some general guidelines to help you determine if your pottery mugs are dishwasher-safe:
Check the manufacturer's instructions: Always start by checking the bottom or the packaging of the mug for any specific instructions from the manufacturer. They will often indicate whether the mug is dishwasher-safe.
Glaze type: Some pottery mugs have a delicate or special glaze that may not be suitable for the high temperatures and harsh detergents used in dishwashers. If the mug has a crackled or matte glaze, it might not be dishwasher-safe.
Handmade vs. commercially produced: Handmade pottery may not be as durable or dishwasher-safe as commercially produced mugs, which often go through specific firing processes to make them dishwasher-friendly.
Age and condition: Older or heavily used pottery mugs may have worn-out glazes that are more susceptible to damage in the dishwasher.
Dishwasher settings: Even if a mug is labeled as dishwasher-safe, using a gentle cycle and avoiding extremely hot water can help prolong its lifespan.
Thermal shock risk: Rapid changes in temperature, such as transferring a hot mug to a cold dishwasher or vice versa, can cause thermal shock and lead to cracks or breakage.
If in doubt or if the mug has sentimental or significant value, it's best to hand wash it to ensure its preservation. Hand washing with a gentle dish soap and soft sponge is generally a safe option for most pottery mugs.