Japanese porcelain vs stoneware, what is the difference ストーンウェア

What is the difference between porcelain and stoneware?

Porcelain is fired hotter and vitrifies completely. That is what makes it pale, translucent and resonant. Stoneware is normally only partially vitrified, so it stays opaque and usually grey or brownish. Both are fired hard enough to be impervious to water.

The firing gap is the number to remember: porcelain matures between about 1,200 and 1,400 degrees Celsius, stoneware a little cooler between about 1,100 and 1,300 degrees Celsius. A fired stoneware body should still absorb less than 1 per cent water. The dishwasher and microwave comparison by material lives on our porcelain guide, so this page keeps the body comparison and the stoneware shelf.

What is stoneware?

Stoneware is a broad class of pottery fired at a relatively high temperature to be impervious to water. It is a vitreous or semi-vitreous ceramic made from stoneware clay or non-refractory fire clay. It is dense, impermeable and hard enough to resist scratching by a steel point, but unlike porcelain it is more opaque and normally only partially vitrified. Stoneware clay can contain impurities such as iron or carbon, giving the fired body a grey or brownish look. Firing runs at about 1,100 to 1,300 degrees Celsius, and a fired body should absorb less than 1 per cent water.

How can you identify it?

Start with the maker's material statement: our Shigaraki, Hechimon and Mino listings explicitly call their bodies stoneware. Where a raw body is visible, look for the traits above: stoneware is more opaque than porcelain and is usually grey or brownish because of impurities in the clay. Where the wall is thin, porcelain lets light through and stoneware does not: porcelain is translucent except when of considerable thickness. Stoneware is more opaque than porcelain and normally only partially vitrified.

Which kilns make it?

The Shigaraki source describes pottery from Koka City as high-fired and unglazed, with rough texture from a mixture of feldspar and quartz grains. Our published Shigaraki listing calls the ware rustic, fire-resistant stoneware. Banko is a qualified case: its association says lithium ore in the clay gives Banko donabe strong resistance to direct flame. Banko no Sato describes heat-resistant earthen pots as a hallmark of Banko ware and says a highly heat-resistant clay developed from petalite. The Mino source calls Minoyaki the name for ceramics produced there, and a Mino listing identifies its teapot as high-fired stoneware from the region.

Banko no Sato, the Banko ware centre run by the Banko Ceramics Promotion Cooperative, puts the cooking effect of that clay plainly: "Banko Donabe, made with highly heat-resistant clay, slowly builds up heat and distributes that heat gently."

What does the shelf carry?

As of 2 September 2026, we list stoneware from Shigaraki, Hechimon and Mino-ware. The named examples, with prices as listed today, are the Shigaraki-ware Cup and Saucer Blue 400ml at $76.00, the Shigaraki-ware Cherry Cup & Saucer Set at $62.30, the Shigaraki-ware Red Dots Cup & Saucer Set at $51.40, the Shigaraki-ware Retro Mug & Dish at $41.79, the Mino-ware Indigo Drip Textured Flat Bowl at $18.00, the Handmade Ash Glaze Shavings Sauce Dispenser at $49.00, the Mino-ware Minimal Linework Tokusa Teapot at $38.00 and the Mino-ware Powdered Chrysanthemum-Shaped Teapot at $48.95. We also list Banko-ware clay pots.

How should you care for it?

Care follows the listing rather than the body name alone. The Shigaraki Blue cup and saucer listing says dishwasher safe and microwave safe, and the Mino Indigo Drip bowl says the same. The Mino Minimal Linework Tokusa Teapot recommends hand washing, while the Hechimon Retro Mug and Dish says it is not safe for the microwave or dishwasher. For a Banko donabe, follow our seasoning and using a donabe guide before use.

Where can you browse?

Read the Shigaraki kiln page for its regional context. The Banko and Mino pages cover the other two kiln regions. For the cooking pot, use the donabe guide. For tableware shapes, see the bowl and mug guides, then browse the bowls and mugs shelves. For the other high-fired tableware body, see our guide to porcelain.

Quick answers

These are the questions people ask us most often about stoneware, answered briefly.

What is stoneware? Stoneware is a dense, high-fired ceramic body that, unlike porcelain, is more opaque and normally only partially vitrified; clay impurities such as iron or carbon can make it grey or brownish.

How can I tell stoneware from porcelain? Start with the maker's material statement; where a raw edge is visible, look for opacity and a grey or brownish body.

Which Kakumei kiln regions make stoneware? Shigaraki and Mino listings are labelled stoneware, while Banko's own sources describe a petalite-rich, heat-resistant donabe body; read each listing for its exact body.

Is stoneware dishwasher and microwave safe? It depends on the piece: the Shigaraki Blue cup and saucer and Mino Indigo Drip bowl are listed as dishwasher and microwave safe, while the Mino Tokusa teapot asks for hand washing and the Hechimon Retro Mug and Dish is listed as neither dishwasher nor microwave safe.

What should I use for a Banko donabe? For a Banko donabe, use our seasoning and using a donabe guide before use, then follow the individual listing for its heat instructions.