1" Magnetic Stir Bar

The 1" Magnetic Stir Bar is perfect for yeast starters in 500–2000 mL flasks, keeping yeast in suspension for optimal growth and faster fermentation. Its PTFE (Teflon) coating ensures smooth, quiet operation and easy cleanup, making it a reliable tool for any homebrewer’s yeast propagation setup. Compatible with the Wort Whipper Stir Plate and all standard stir plates, this compact stir bar delivers consistent agitation and oxygenation for healthy, active yeast cultures. Always keep a spare to avoid delays during your next brew day. Key Features: Ideal for 500–2000 mL flasks PTFE coating for smooth, quiet performance Promotes yeast health and strong fermentation Compatible with Wort Whipper & most stir plates