Stir Bar - 50 mm

Add to the flask when propagating yeast on a stir plate. Can be boiled in the flask along with starter wort. Always a good idea to have spares on hand in case you pour the stir bar into the fermenter along with the starter! 50 mm size is best for 2000 or 5000 ml flasks. California Proposition 65 ⚠ Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.