We formulate and mix our porcelain clay & glaze in-house. All of our raw materials are sourced from USA mines and are 100% non-toxic. We fire our wares to full virtification which results in a very dense and durable product meant for everyday usage. Although very strong, these pots can still break if not handled carefully. If used mindfully, our pottery will last many generations! Our pottery is microwave and dishwasher safe.