This bit of news is a nice breakthrough for rice hull earthbag building. Using a suggestion from Richard, a long time reader, I made a test bag using raschel mesh and rice hulls. I had previously ruled out using rice hulls in mesh bags, because it seemed certain that the hulls would fall through. Well, it turns out some hulls do fall through, but not many. The hulls naturally jam up against each other and only a negligible amount (say 3% or so) fall through.