A0064-000C6B These 64 ounces (half gallon) clear glass jar with an 83 mm (83-400) continuous thread finish has a wide mouth and serves multiple purposes including bulk canning, fermenting, dry storage, cookies, candy and terrariums. It's often used for pickles, pickled eggs, kombucha, and various bulk storage items. This container is clear, making it an ideal display container for your product. Create ample carbonation without a swing top. The wide mouth makes it easy to add flavoring for a second fermentation. Great for grab and go. Includes six caps. These fantastic bottles and caps are made in the USA, 64 oz size, leak-proof. The secret to how these build carbonation without a swing top: the polythenal cones inside the caps. When you tighten them, the lip of the bottle tightens into the malleable plastic cone shape and holds the lip in place, locking in the pressure. The Stout Bottles feature a wide long neck, also key for building carbonation in a second ferment. The bottle opening is nice and wide, which means plenty of room to easily add fruit and other flavorings during bottling.