Modernizing Ancient Technology
This food preservation solution uses clay as a modern storage vessels. Clay is a great material for this because it is highly customizable, shapable, and has well known insulation properties. Furthermore it is abundant and therefore cheap. As an added bonus, local craftsmen and craftswomen who have specialized knowledge of the material can be employed to construct these vessels. Just because the material has been worked with for thousands of years does not discount it as being applicable in modern solutions.