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Mason jar lids and airlock for fermentation
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Lids for small and wide mouth Mason/Bell jars with threaded hole for custom airlock.
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Model information
- Source
- Printables
- Category
- Kitchen
- License
- Creative Commons — Public Domain
These lids screw on perfectly on Mason jars but require the use of silicone gaskets to be 100% airtight (available from Amazon). They have a threaded hole in the middle to screw in the threaded airlock stem. The tightness of the fit may vary depending on your printer settings and type of filament used. Mine were printed from ABS at 220C with a 0.4mm nozzle and 0.2mm layer height. You can slightly scale up or down the airlock funnel in your slicer to adjust fit.
I also included the regular lids (no hole in the centre).