King Arthur Glass Sourdough Crock, 1.5-Quart Borosilicate Jar with Stainless Steel Lid and Measurement Markings

King Arthur's 1.5-quart borosilicate glass sourdough crock with stainless steel lid is a transparent, non-toxic starter container designed to store and visibly monitor sourdough fermentation.

If you keep an active sourdough starter or want a dedicated vessel for regular feedings, this King Arthur Baking Company glass crock provides a compact, clear, and food-safe home for your culture. Made from durable borosilicate glass with a stainless steel lid, the crock gives bakers an unobstructed view of activity and a convenient way to track rise and bubble formation without disturbing the starter.

How will this crock help me track my starter's activity?

The clear borosilicate glass makes it simple to watch bubbles, separation, and rise so you can time feedings and baking more confidently. Vertical markings in quarter-inch increments give precise visual cues for how much your starter has expanded.

• Transparent walls let you observe fermentation progress without opening the lid.
• Vertical 1/4-inch markings show rise height for consistent feeding schedules.
• 1.5-quart capacity holds enough starter for multiple loaves and routine maintenance.

Is the crock safe and easy to care for?

The crock and lid use food-safe materials: borosilicate glass and stainless steel, free from lead, cadmium, BPA, and PFAS. To preserve the glass, King Arthur recommends gentle hand washing and careful handling rather than aggressive scrubbing or dishwasher use.

• Made from borosilicate glass that resists thermal shock compared to ordinary glass.
• Stainless steel lid provides a simple, hygienic cover without plastic chemicals.
• Hand-wash with warm, soapy water and dry thoroughly after use.

Will this size work for my baking routine?

The 1.5-quart usable capacity is sized to support daily or frequent baking, supplying enough starter for several loaves and routine refreshments. It’s compact enough to store on a countertop or in a fridge while still allowing room for active growth during feedings.

• 5.23 x 5.23 x 6.89 inches offers a countertop-friendly footprint.
• Capacity suits home bakers who maintain a single-family starter batch.
• Vertical shape encourages a tall rise, making measurements easier.

How does this crock fit into a tidy baking workflow?

With visible markings and a secure lid, the crock helps you integrate starter maintenance into a predictable baking schedule. Because the materials are non-toxic and easy to inspect, you can quickly decide when the starter is ready for dough without transferring it to a separate container.

• Visual cues reduce guesswork before mixing dough.
• Secure lid keeps contaminants out while allowing brief breathing during fermentation.
• Transparent glass simplifies cleaning and inspection between uses.

Who is this for: Home bakers and sourdough enthusiasts seeking a reliable, food-safe display container for an active starter will appreciate this King Arthur glass crock. It’s designed for people who want clear visual feedback during feedings, a compact vessel that fits kitchen spaces, and materials that avoid heavy metals and common plastics. If you prefer larger commercial batches, consider a bigger vessel, but for most household routines this 1.5-quart crock balances capacity, visibility, and safe construction.