I finally got my home-made stir plate running. A few questions:
• I've seen images of stir plate with this huge vortex that almost goes to the bottom of the flask. How important is this for yeast growth?
• My stir plate just kept things in suspension with a very small vortex that extended maybe 1/2" below the surface of the wort. What can I do to improve this? I currently have a 2" stir bar.
Any input is appreciated.