Storing food & coffee must be done carefully and in jars made of natural material. BODUM makes a storage jar of borosilicate glass with a wood or cork lid. 
BODUM's traditional borosilicate glass contains no lead and has a brilliance like no other industrial manufactured glass. The ultimate storage jar, absorbs no aromas, and once cleaned in the dishwasher all scents of an earlier stored tea, coffee, or herb will disappear. At BODUM a jar is not just a jar... but common sense and practical knowledge. Except for breaking a glass they will look beautiful for a lifetime (even if you have scratched off your handwritten label a couple hundred times). In many ways, only BODUM storage jars stand a lot of changes. 

The jar is sealed with a thin removable silicon gasket to keep it shut tight for safe storage.