The best way to store kinetic sand is in an airtight container with a well-fitting lid. This will help keep the sand from becoming dry or hard from exposure to air. You may also want to add some silica gel packs to the container to help maintain the moisture in the sand. If the sand has already hardened, you can also add water to it in small increments and mix it until the sand becomes soft again. When storing the sand, make sure that the container isn’t left in direct sunlight or in a hot place as this can cause the sand to lose its properties. Have fun!
