King Arthur 00146K Glass Sourdough Crock 1.5-Quart food storage

Sourdough Starter Crock

The King Arthur 00146K glass crock is designed for home bakers who maintain an active sourdough starter and want clear visibility of its rise. Its borosilicate glass construction is non-reactive and free from lead, cadmium, BPA, and PFAS, ensuring the culture stays pure. The loose-fitting stainless steel lid allows fermentation gases to escape while keeping contaminants out. This 1.5-quart vessel suits bakers who value straightforward monitoring over automated controls.

1.5-Quart Capacity and Monitoring

The 1.5-quart volume holds enough starter for several loaves, giving ample headroom for the culture to double without overflowing. Red markings at 0.25-inch intervals on the clear glass let you gauge the exact rise point so you know precisely when the starter has peaked or needs feeding. The round, 5.23 by 6.89-inch shape fits easily on a countertop or shelf. It is not suited for bakers who need larger bulk-fermentation vessels or airtight long-term storage.

Upgrade from Improvised Jars

This crock replaces mismatched jars, plastic tubs, or bowls covered with loose towels that make it hard to judge starter activity. The dedicated borosilicate glass and vented lid eliminate the guesswork of whether gases are trapped or the culture has overproofed. The jump is worth it when inconsistent feeding schedules or unclear rise signals are affecting your bread results. It does not replace a proofing box for dough fermentation or a temperature-controlled chamber.