Very hard to clean a blender! More nitpickfully, one of the big things we care about is if the bacteria are living _harmlessly_ in the brain. i.e., site of mic

Very hard to clean a blender! More nitpickfully, one of the big things we care about is if the bacteria are living _harmlessly_ in the brain. i.e., site of microbes, and a lack of inflammation, will answer more than just "are there microbes around".