Great video! Obliging wife! (Mine, too!)
Haven't used the blender-technique on dirt...just sifter. In the dry season (remember those?....me neither, lately!) I can find enough fines to sift down to get the jobs done. BTW...What parasites, indeed?
HOWEVER, I use the old blender for grinding up dried leaves (late Fall) in a water slurry, spreading them out on an old cookie sheet, drying them in an oven at a temperature that kills the leafy buggers, then crumbling/sifting the remains for forest ground cover. Not my original technique...read it in a Lou Sassi book...but I'm not even sure he'd lay claim to it.
The old blender (ours came from a relative's estate...freebie) is a very handy tool, indeed, for scenery work.
Hope to see more of your videos!
KD