The 2000 mL Erlenmeyer Flask is a heat-resistant borosilicate glass flask designed for preparing yeast starters and propagating brewing yeast before fermentation. Recommended for 10+ gallon beer batches, this laboratory-style flask allows homebrewers to prepare larger starter wort volumes, increase yeast cell counts, and support healthier fermentations for high-volume brewing projects. Its tapered shape makes swirling and mixing easier while helping reduce spills during yeast starter preparation. Constructed from borosilicate glass, the flask is designed to withstand temperature changes commonly encountered during brewing workflows. Unlike standard glassware, it can safely transition from heating to cooling applications, such as stovetop to ice bath, when handled properly. The flask is compatible with magnetic stir plates, making it suitable for continuous agitation during yeast propagation and starter development. The flask features a 2000 mL capacity and measures approximately 11.25 inches tall by 6.5 inches wide at the base. It is intended for preparing starter wort and propagating yeast before pitching into larger beer fermentations. Gas stove heating or double boiler methods are recommended, while direct contact with electric burners is not advised due to the risk of thermal stress on the glass. To use, prepare starter wort directly in the flask, cool to yeast-safe temperatures, and pitch brewing yeast into the starter. Swirl periodically or place on a compatible stir plate to keep yeast suspended during propagation. After use, hand wash carefully to maintain the borosilicate glass surface and clarity. Widely used in advanced homebrewing yeast propagation workflows, the 2000 mL Erlenmeyer Flask provides a reusable solution for large yeast starters, stir plate use, and fermentation preparation for high-volume brewing systems.
