Setting up culture in BSL 3
Culturing in a Biosafety level III lab works in the same way as culturing in a normal lab. However, more care is needed. For this reason, no flip top tubes are used and the “little finger technique” is applied to open screw top lids safely when pipetting. Class III mode is deemed safer when cultures exceed 25 mL, because the agent won't be so concentrated.
Further reading: