I ran across these and thought they were pretty cool. Waterbrick International offers these containers for bulk storage of various items that can be stacked.
The secret is in the design. Not only do they boast handles but they also have molded protrusions and indentations that allow the bricks to interlock when stacked.
This design also gives you a lot of options for stowage and portage.
Yes, they are food amd water safe.
