5 liter (5000ml) capacity Erlenmeyer Flask made from borosillicate glass. Uses an #11.5 rubber stopper to seal. We do not recommend using a stopper for yeast starters as you'll be sealing off necessary oxygen to the starter. Flasks may contain minor cosmetic flaws that do not impact the performance of the flask.
-Tempered and sanitary
-Can be placed directly on a heat source
-Graduated every 1000ml