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A Fernbach flask or Fernbach culture flask is a type of flask suited for large volume cell culture where the culture requires a large surface area to volume ratio.
A Fernbach flask is similar in appearance to a short Erlenmeyer flask with a cylindrical bottom, or a Petri dish with an inverted funnel glued on top. Typically, they are baffled on the bottom in order to maximize oxygen transfer to the culture medium. They are commonly made of plastic, like PE, PP, polycarbonate, PMP or other materials like borosilicate glass. Plastic flasks are disposable. Some Fernbach flasks have a screw and plastic lid with an air membrane, to allow air to enter the flask, but prevent contamination.
Fernbach flasks can be bought from lab suppliers or online.
- Grow bacterial cultures