1000 ml Erlenmeyer Flask

An excellent all-around yeast starter vessel. 1000 ml borosilicate glass flask is an excellent all-around yeast starter vessel. Takes a #8.5 stopper or 35-45 mm foam stopper - for optimum fit, especially when propagating yeast, we highly recommend using a foam stopper. 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.