The Osaka Jar, Self-Sealing Airtight Storage Jar is designed especially for coffee but can be used for storing almost anything. It holds up to 13.5 oz. The jar itself is made of ceramic and the lid from silicone. It is heat resistant and airtight but will allow any CO2 build-up to be released without allowing in any oxygen.
This is just the neatest little jar! We are using it to store coffee grounds. We usually grind just enough to last a day or two so they stay as fresh as possible. The lid seals so tight you can actually lift up the whole jar by the lid. This will be sure to keep our grounds fresh.
You can find the Osaka Jar, Self-Sealing Airtight Jar on Amazon. They also offer it in black.
* I received this item at a discount for my honest review. Opinions are my own.