I brew beer as a hobby, and one of the secrets to really good homebrew is happy, healthy, plentiful yeast at the start of fermentation. Creating a yeast starter really helps with this, and a good yeast starter requires a stir plate to keep the yeast in suspension. Stir plates aren’t super expensive, but at around100USD they’re not something you’d buy on a whim. I found a lot of information online on how to make your own DIY stir plate using an old computer fan and some magnets, and sinc...
