Thanks to HBF Reader Timur for this tip!
25 mm (about 1″) PTFE Stir Bar from Scientific Equipment of Houston. Polished to reduce potential for contamination. Use this in combination with an Erlenmeyer Flask and Stir Plate to make a yeast starter. A stir plate… keeps yeast in constant contact with nutrients, encourages CO2 to off gas and continuously incorporates oxygen all of that means higher cell counts.
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