A Biophysics Lab Test: A biophysics grad from an Ontario university worked with us for a bit, and tested one of our zappers in his own “home lab”- his kitchen. He was making sourdough bread, so he set a batch aside, and gave it the zapper treatment. Well, it killed that batch of sourdough. How many more times should that same experiment be repeated by the same person, before we conclude there is something to it? To kill the sourdough, the zapper would have to kill bacteria and yeast. If you want to experiment with it, go for it!