Laboratory glass Erlenmeyer 5000ml, borosilicate glass

Erlenmeyer conical flask 5000ml (borosilicate glass) is ideal for large yeast cultures using a magnetic stirrer. Yeast propagation can take your beer to the next level, ensuring flavor characteristics from the yeast. This helps avoid strained flavors that can occur with underpitching yeast. When fermenting lagers, we strongly recommend making large yeast starters to ensure the tastiness of your brew.

Dimensions: L x W x H x Opening (mm) 220 x 220 x 370 x 45. Our Erlenmeyer conical flasks are made from high-quality borosilicate glass that you might see in laboratories. If you want to heat DME (dry malt extract) for a yeast starter, these flasks are perfect! So, whether you're conducting scientific experiments or simply want to make large yeast starters, this is your best choice. We recommend using only a gas stove, not an electric stove.

Usage principle: The Erlenmeyer flask is a conical vessel with a wide base and narrow neck, allowing efficient mixing of liquids with minimal splashing. Its design helps prevent liquid from splashing out during mixing and promotes uniform heat transfer during heating.

Safety instructions:
Please handle this and other borosilicate glass products with caution.

There is a common misconception that borosilicate glass is almost bulletproof and can withstand any extreme temperatures. This is not entirely true.

Although it has an excellent ability to withstand sudden and drastic temperature changes compared to regular glass, it should still be handled with conscious care.

Cool all glassware slowly to prevent breakage, unless you are using VYCOR glass, which can go from high heat to ice water without damage.

Do not take your boiling flask directly from the stove to ice water. Although some people do this without problems, borosilicate glass is not designed for such use. Please allow the flask to cool for a few minutes before placing it under water or in an ice bath. The more slowly you introduce your flasks to temperature changes, the longer they will last. Moving from fire to ice in a matter of seconds creates tremendous stress in the glass structure. While the glass may sometimes withstand this, you may not be so lucky other times. If the temperature difference is large enough, the glass will break. All borosilicate glass will eventually break after a certain number of heating/cooling cycles; it is impossible to specify an exact number, but this is a natural and inherent feature of the material.

Please do not let flasks boil dry or dry them on the stove. The drying temperature should not exceed 140°C, which an open flame can easily exceed.

Do not heat glassware that is etched, cracked, chipped, notched, or scratched. They are more prone to breaking.

Do not heat glassware directly on electrical heating elements. Excessive stress will develop in the glass, which can cause breakage.

Small bubbles less than 5mm and not located directly on the bottom of the flask are an acceptable manufacturing defect according to the instructions from several glass machine manufacturers.

Keywords: laboratory glassware, Erlenmeyer flask, conical flask, borosilicate glass, yeast culturing, beer brewing, large flask, 5000ml, laboratory vessel, fermentation