Pivoting Magnetic Stir Bar:
These 28mm magnetic stir bars are suited to use with the above conical flask. If you would like to make your own stir plate you can use use a small computer fan and the neodymium magnets to make a magnetic stirrer. Alternatively if you prefer to purchase a professional laboratory adjustable magnetic stirer these are available.
Using a magnetic stirer is easy and will optimise the growth of your yeast starter in the conical erlenmeyer flasks.