Grommet/ Washer for fermentation lid ( Set of 3 ) Supplement and the recipe book to

and the recipe book to turn seasonal produce into living

Food-grade glass with a rust-free

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Grommet/ Washer for fermentation lid ( Set of 3 ) Supplement and the recipe book toThe small part that makes airlock fermentation work. These food grade silicone grommets seat your airlock snugly in the lid, creating the airtight seal that lets CO escape while keeping oxygen out. A set of 3 spares to keep your fermentation lids in service. Food grade silicone safe, high quality and built to last Airtight fit holds the airlock securely for a clean seal Washable & durable stands up to regular washing and reuse Set of 3 handy