Erlenmeyer Flask with Screw Cap and Baffles – Optimal Combination for Shaking Cultures

These Erlenmeyer flasks combine the advantages of a secure screw closure with the mixing-enhancing properties of baffles. The GL thread with high-quality PBT screw cap and PTFE-coated seal enables a tight, reusable closure, while the integrated baffles ensure optimal aeration and mixing in shaking cultures.

Technical Features:

• Material: Borosilicate glass 3.3 according to DIN ISO 3585
• Screw thread: GL 25, GL 32, or GL 45 (depending on volume)
• Screw cap: PBT with PTFE-coated seal
• Temperature resistance of cap: up to +200 °C
• With 3 or 4 baffles (depending on volume)
• Conical shape for optimal aeration
• Autoclavable
• High chemical and thermal resistance
• Graduation for volume orientation

Advantages of the Combination:

• Tight closure: Prevents contamination and evaporation during incubation and storage
• Optimal mixing: Baffles improve oxygen transfer and culture homogeneity
• Reusable: Robust screw cap for multiple sterilization cycles
• Safe: Reinforced beaded rim increases mechanical stability

Important Handling Note:

During autoclaving, the screw cap must only be placed loosely on top and must not be fully tightened to allow pressure equalization and prevent glass breakage.

Application Areas:

• Shaking cultures (bacteria, yeast, fungi, cell lines)
• Fermentation and bioreaction
• Cell culture and microbiology
• Enzyme and protein production
• Long-term incubation
• Sample transport and storage

The Erlenmeyer flasks are available in various nominal volumes from 50 ml to 5000 ml. Smaller volumes feature 3 baffles, larger volumes (from 2000 ml) have 4 baffles for even more effective mixing.

Important Notes!

Sale only to commercial customers: Distribution is exclusively to companies, public institutions, and universities.
Delivery to private individuals is excluded.

Product images: Images serve as illustrations and may differ from the actual scope of delivery. A representative variant may be shown.