The test mesh bag I recently made was substantially dry in just two days! I’m sure there’s some moisture inside, but the outside is already dry. This rate of drying is several times faster than poly bags. In addition to being good news for typical earthbag walls this also means alternative fill materials with plant matter inside (such as vetiver/clay) would not rot. People are experimenting with these alternative fill materials for a variety of reasons – greater termite resistance and making lighter weight bags.