I designed the casing solid. I recommend 100% fill for this as it will need to be strong. Also My first attempt I has designed holes in the bottom for the garlic to come out. I ended up removing those and drilling holes manually because my printer made a mess of those holes. use an 1/8" drill bit to drill evenly spaced holes in the bottom of the case.
Make sure all the screw parts fit together nicely. There is one known overhang issue in the top of the lid which I will correct, but even then the piece worked. Screw the 'screw' bit into the lid and superglue/epoxy the handle to the screw top.
Printed with PLA to be food safe.