Canning Jar Fermentation Lid

thingiverse

The air trap lid uses water as an air barrier, allowing carbon dioxide and other gases to escape while preventing oxygen from spoiling fermenting foods like sauerkraut, kimchi, ginger beer, or pickled vegetables. This one-piece design, inspired by "Pickl-it" and 3D printable lid designs, requires a gasket for proper sealing. To print, opt for 100% infill with good bridging and layer flow. Fill the reservoir halfway with water to ensure its functionality. For recipes, check out Pickl-It's blog or explore other resources targeting small batch fermentation.