64 oz Square Glass Mason Jar - Swing Top Lid

64 oz square glass mason jars with swing-top clamp lids — the half-gallon size of our swing-top collection and a fermentation favorite. The silicone-gasket clamp seals airtight in one flip, with measurement marks printed on the glass.

• Half-gallon (64 oz) capacity — ideal batch size for pickles, kraut, sourdough flour, and overnight oats in bulk
• Swing-top clamp lid — silicone gasket seals airtight instantly; no threads, no lost lids
• Extra-wide mouth — pack vegetables tight and clean by hand without a struggle
• Printed oz/mL measurement marks — portion brines and dry goods right in the jar
• 2-pack or 4-pack — run staggered ferment batches or build a matching pantry set

The jar fermenters reach for first — sized for real batches, sealed for real results.