Advantages of the tissue culture flask with the peel-off foil:
This flask cannot be re-closed after the foil has been peeled-off.
The foil is welded securely to the polystyrene carrier.
It is important to use only filter screw caps. An internal pressure of more than 0.03 bar (0,00043 psi) in the flask without pressure equalisation might raise the foil and result in leakage.
For more information, visit TPP.ch.