250 mL Erlenmeyer Flask - Heat-Resistant Borosilicate GlassThe 250 mL Erlenmeyer Flask is an essential tool for yeast culturing and laboratory analysis in the brewery. Made from laboratory grade borosilicate glass, it is thermal shock resistant, allowing you to move it from a flame to an ice bath safely. Its narrow neck design is ideal for use with magnetic stir bars and stir plates, providing maximum oxygenation for healthy yeast cell growth during the initial stages of a starter or for propagation from a