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Fermenting jar lid v1 — image 1
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Fermenting jar lid v1

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A lid for a jar to be used with fermentation. Water in the gutter between the inner and outer parts creates a waterlock.

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Model information

Category
Kitchen
License
Creative Commons — Attribution

This is a lid for a glass jar to be used with fermentation. The lid is inspired by traditional ceramic fermentation jars which have the same kind of gutter around the lid. Water is then poured in the gutter to create a waterlock. This means that no air gets in – and no tiny particles of mold either – but gases on the inside of the jar created by the fermentation process do get out.

The lid is designed for a specific kind of glass jar (Riihimäki, a Finnish brand that's commonly found at second hand stores), but I've included the FreeCAD file so feel free to modify to your heart's content!

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