Proper aseptic technique is crucial to ensuring growth of pure bacterial colonies. What is one experimental way you can test your practices to confirm that you are using proper aseptic technique?

There are techniques to test that if an individual is practicing proper aseptic techniques to ensuring the growth of the pure bacterial colonies. The one of the experimental way to test is as follows:

Leave a Petri plate poured with media at lab, leave it for some time in open. Then incubation of the petri plate for 24 hours.

If bacteria colonies found on the plate, then the aseptic techniques that is following are not proper.

i think the answer is

mass

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