In cell culture workflows, commonly used laboratory vessel categories, namely Erlenmeyer (shake) flasks and suspension culture flasks, are primarily distinguished by their role in supporting cell growth, oxygen transfer, mixing performance, and scalability in in vitro systems. This functional classification is consistent with standard cell biology and bioprocess practice, where culture vessels are defined according to their operational behavior and suitability for specific cell growth modes, particularly adherent versus suspension systems.
Erlenmeyer flasks
- Used for microbial and suspension-adapted mammalian cell culture under orbital shaking.
- Conical shape supports mixing and passive oxygen transfer.
- Available with standard, baffled, or vented-cap designs to adjust aeration and agitation.
- Commonly used for early-stage culture work, including cell expansion and process optimization.
Suspension culture flasks
- Designed for suspension-adapted mammalian and microbial cells that grow freely in liquid culture.
- Typically include vented caps with gas-permeable membranes and optimized geometry to improve handling and reduce stress on cells.
- Rely on passive gas exchange through filter caps during orbital shaking.
- Used for efficient suspension growth and scalable expansion under controlled laboratory conditions.
