25 mm (about .98″) by 8 mm Teflon Magnetic Stir Bar.
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.
4/25/17 4 PM Central: This highly rated stir bar his selling for $3.29. Shipping to most US addresses is also free, with a qualifying order, as part of the Amazon’s Add On promotion. Price, shipping and availability can change quickly. Check the product page for up to the minute price and availability. See Recent Amazon Finds and our Amazon Fillers Resource Page to help you put together an order that qualifies for free shipping.
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