hi all,
small question i’ve wondered about as i’m moving in to liquid cultures more than i have in the past:
assuming you aren’t using a fancier form of air filtration, is there any especial issue with using a a diy polyfill air exchange port for injecting/extracting liquid culture instead of a second devoted sealing port?
i mean, in terms of sterile practice, probably not ideal, but in a pinch i can’t imagine it’s significantly more risk of introducing contamination than just the regular standing risk of contamination from using a polyfill filter as long as you follow the same sterile needle practice you otherwise would.
thoughts?