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Coffee Cap Bean Preserving Lids

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  • • Coffee Bean Ventilation Lids - Includes 2 Coffee Caps for Mason Jars in Caramel and Brown

    Creates a Self-Venting CO2 Barrier, Preventing Beans from Spoiling

    Made of Food-Safe Silicone

    Designed for Wide Mouth Mason/Canning Jars (Ball, Bernardin, Kerr, etc.)

    *Includes disc lids only; screw band not included



Fresh roasted coffee beans let off carbon dioxide in a "de-gassing" process. To keep beans fresh for as long as possible, they must be stored in a container which allows this carbon dioxide to escape as necessary, without allowing Oxygen to get at the beans and cause them to go stale.  

We've created Coffee Caps to transform any wide mouth mason jar into the ideal coffee bean storage vault. Using the same technology developed for our Pickle Pipe, you can keep beans fresh with jars you already have around the house. Just screw the Coffee Cap into place with any standard screw band (not included) and store your beans in a dark spot, like a cupboard. That's it. There are no valves to replace, maintenance, or monitoring whatsoever. It just works. 

Don't spend $20 or more on a container with only one size and one purpose to store your beans. Coffee Caps provide the flexibility to store large or small quantities in jars that you already have. This reduces cost, and allows you to upcycle your jars for yet another useful purpose. 

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