Can Japanese Pottery Go in the Dishwasher? | Material-by-Material Guide

The Quick Answer

It depends on the material. Modern porcelain is generally dishwasher safe, but many traditional Japanese ceramics require hand washing. Here's your complete guide.

Dishwasher Safe

• Plain porcelain (jiki) — Fully glazed, no metallic decoration
• Hasami ware — Most modern Hasami porcelain is designed for dishwasher use
• Mass-produced stoneware — Check the manufacturer's guidelines

Hand Wash Only

• Earthenware (toki) — Porous clay absorbs dishwasher detergent chemicals
• Gold/silver decorated pieces — Metallic decoration will deteriorate
• Hand-painted ware — Overglaze paintings can fade with repeated washing
• Lacquerware (urushi) — Heat and detergent destroy lacquer finish
• Unglazed pottery (Bizen, Shigaraki) — Absorbs detergent, affecting taste
• Crackle glaze (kannyu) pieces — Detergent seeps into cracks and stains

Tips for Dishwasher Use

• Use the gentle/delicate cycle with lower temperatures
• Don't overcrowd — pottery needs space to avoid chipping
• Place pieces securely so they don't move during the cycle
• Skip the heated dry cycle when possible

When in Doubt, Hand Wash

Hand washing takes only a minute and dramatically extends the life of your pottery. Use lukewarm water, mild dish soap, and a soft sponge. Dry immediately with a clean cloth — never let pottery air dry in a rack where water can pool.