Flask 70mL Cell Culture Corning Bacteriological Polystyrene Vented Cap

Description

Product Overview

The Corning 70 mL Cell Culture Flask is engineered for demanding laboratory environments where sterility, clarity, and reliable performance are essential. Constructed from bacteriological grade polystyrene, the material offers a chemically inert surface that does not leach contaminants, ensuring that delicate cell lines remain unaffected throughout the culture period. The flask’s transparent walls provide unobstructed visual access, allowing researchers to monitor confluence, morphology, and color changes without disturbing the culture. A vented cap equipped with a precision‑molded seal facilitates optimal gas exchange, delivering the necessary oxygen and carbon dioxide balance while minimizing the risk of aerosol contamination. The 70 mL volume is ideal for routine assays, small‑scale experiments, and pilot studies, offering enough space for media and cells while conserving reagents. Each flask conforms to Corning’s strict dimensional tolerances, guaranteeing compatibility with standard laboratory racks, shakers, and incubators. The case of 100 flasks is packaged in a moisture‑controlled box to preserve sterility until the point of use, making it a convenient bulk option for research institutions, biotech startups, and quality‑controlled manufacturing facilities.
Manufactured under ISO 9001 and ISO 13485 quality management systems, the flask meets international standards for laboratory consumables. The smooth interior surface reduces cell adhesion to the walls, promoting uniform growth and simplifying downstream harvesting. Additionally, the vented cap is compatible with both standard and high‑density incubator racks, providing flexibility for scaling up experiments. The flask’s design has been validated for use with a wide range of cell types, including adherent, suspension, and hybridoma cultures, making it a versatile tool across multiple research disciplines.
Beyond its functional attributes, the Corning flask incorporates sustainable manufacturing practices. The polystyrene resin is sourced from responsibly managed feedstocks, and the production process minimizes waste through recycling of off‑cuts and water‑based cleaning methods. The packaging is recyclable, and the product is free from BPA and other endocrine‑disrupting chemicals, aligning with growing laboratory sustainability goals. Users benefit from a consistent product that reduces variability between batches, a critical factor when reproducibility is paramount. The clear labeling on each flask includes the model number 29185‑302, volume, and manufacturing date, facilitating inventory tracking and compliance with Good Laboratory Practice (GLP) documentation. With a best‑seller rank indicating strong market acceptance, the flask has become a trusted component in cell culture workflows worldwide.

Usage

The flask is suited for a broad spectrum of cell culture applications, from routine maintenance of adherent cell lines to more specialized assays such as transfection, drug screening, and virus production. Its vented cap design ensures that cultures receive adequate oxygen while maintaining a stable CO₂ environment, which is critical for maintaining physiological pH in bicarbonate‑buffered media. Researchers can easily integrate the flask into standard incubator racks, orbital shakers, and automated handling systems, streamlining workflow and reducing hands‑on time. The clear walls enable quick visual assessment of cell morphology and confluence, allowing timely sub‑culturing or harvesting without the need for additional sampling equipment.
In practice, the flask performs reliably under a variety of conditions, including repeated autoclave cycles, exposure to common disinfectants, and long‑term storage at room temperature. For suspension cultures, the vented cap prevents pressure buildup while still providing a secure seal, reducing the likelihood of media spillage during agitation. When used for adherent cultures, the smooth interior surface minimizes cell attachment to the flask walls, promoting uniform monolayer formation and simplifying downstream processing. Best practices include pre‑warming the flask to incubation temperature, avoiding excessive shaking that could cause media splashing, and regularly inspecting the vented cap for integrity to ensure consistent gas exchange.
Troubleshooting tips emphasize the importance of maintaining a sterile environment: always handle the flask within a laminar flow hood, use aseptic techniques when adding media or reagents, and verify that the vented cap is seated correctly before placing the flask in the incubator. Users have reported that the transparent design aids in early detection of contamination, as turbidity or color changes become immediately apparent. For high‑throughput applications, the flasks can be organized in multi‑well racks, and their uniform dimensions facilitate automated liquid handling, reducing variability and increasing reproducibility across large experimental sets.

Why Choose Us

Corning’s reputation as a leader in laboratory glassware and plasticware underpins the quality of this cell culture flask. Decades of research and development have resulted in a product that combines rigorous material standards with thoughtful design features, such as the vented cap that balances gas exchange with contamination control. The flask is backed by comprehensive technical support, including detailed product datasheets, application notes, and direct access to Corning’s scientific experts who can assist with protocol optimization and troubleshooting.
Quality assurance is reinforced through batch‑to‑batch testing, ensuring that every flask meets the same specifications for dimensions, clarity, and sterility. The product’s compliance with ISO and GMP standards provides confidence for users in regulated environments, such as pharmaceutical development and clinical research. Additionally, Corning offers a clear return policy and responsive customer service, addressing any concerns promptly and providing replacement units when necessary. This commitment to service, combined with the flask’s proven performance in a wide range of cell culture applications, makes it a reliable choice for laboratories seeking consistency, durability, and scientific support.

Key Features

• High‑quality bacteriological grade polystyrene provides a sterile, non‑reactive surface for sensitive cell lines.
• Vented cap design enables efficient gas exchange while reducing contamination risk during incubation.
• Transparent 70 mL volume allows easy visual monitoring of cell growth without opening the flask.
• Durable construction withstands repeated autoclave cycles and standard laboratory handling.
• Comes with responsive customer support and a clear return policy for peace of mind.

FAQ

Can this flask be autoclaved?

Yes, the flask is made from autoclavable polystyrene and can be sterilized at standard autoclave temperatures without deformation, preserving its structural integrity and clarity.

Is the vented cap compatible with standard incubators?

The cap is designed to fit common CO₂ incubator racks and provides a secure seal while allowing gas exchange, making it suitable for most laboratory incubator models.

What is the recommended storage condition?

Store the flasks at room temperature, protected from direct sunlight, and keep them in a clean, dry environment until use to maintain sterility and material performance.