Sarah Kersten Studio Fermentation Jar

The waterlock design creates an airtight barrier that allows carbon dioxide produced during fermentation to escape while preventing oxygen from entering the jar. This oxygen-free environment is essential for encouraging beneficial bacteria growth and preventing mold.

Yes, the jar comes with custom-fitted stoneware weights designed to hold your vegetables beneath the brine. Keeping ingredients submerged is the most effective way to ensure a safe and successful fermentation process.

The 3.5-quart capacity is a versatile size that works well for both standard batches and larger projects like sauerkraut or kimchi. While it is spacious, it is compact enough to fit comfortably on most kitchen countertops.

The stoneware is durable and can be cleaned with warm, soapy water. Because of the wide mouth, it is easy to reach inside for thorough scrubbing, though we recommend avoiding harsh abrasives to preserve the studio glaze finish.

You should check the water channel periodically to ensure it hasn't evaporated, especially in dry environments. Keeping the channel filled is necessary to maintain the airtight seal required for your ferment.