Short answer: yes — if the porcelain was properly fired. Here is what that actually means, and what to check before you load your pieces.
Why firing temperature matters
Porcelain becomes dishwasher-safe through vitrification: when clay is fired hot enough, the body fuses into a dense, glass-like material that cannot absorb water. If a piece is under-fired, the body stays slightly porous — water seeps in, and over time the piece can craze or weaken.
What makes Purekiln pieces safe
- Every piece is fired at 1300°C — well past the vitrification point.
- Our glazes are lead-free and third-party tested.
- The dense body resists staining, so tea and coffee rinse off cleanly.
How to wash porcelain safely
- Place cups and vases securely on the top rack.
- Let hot pieces cool before rinsing in cold water (thermal shock is the real enemy of ceramics).
- Hand washing is always safe — warm water and mild soap are plenty.
What about hand-painted pieces?
Our hand-painted cobalt designs are fired into the glaze at 1300°C, so the brushwork is fused into the surface — not painted on top. Dishwashing will not fade the pattern.
If you are ever unsure about another brand’s porcelain, the rule of thumb: check the firing temperature. Under 1200°C, hand-wash to be safe.
Browse our tea ware — all dishwasher-safe, all hand-painted in Dehua.
