King Arthur Glass Sourdough Crock

Borosilicate glass is highly durable and resistant to thermal shock, making it a safe, non-reactive material for long-term fermentation. It won't absorb odors or flavors, ensuring your starter remains pure batch after batch.

No, the lid is designed for a loose fit. This is intentional, as it allows the gases produced during fermentation to escape while keeping dust and debris out of your starter.

No, this crock is not dishwasher safe. We recommend hand washing the glass vessel and the lid with warm, soapy water to maintain the integrity of the materials.

With a 1.5-quart capacity, this vessel is sized to comfortably hold a healthy, active starter. It provides enough headspace for the culture to double or triple in volume during peak activity without overflowing.

Yes, the measurement markings are integrated into the design, allowing you to track the growth and activity of your starter accurately over time without needing a separate measuring tool.