Hi, I have a major issue to discuss. There are two undergrads who are keeping our incubator open for many minutes because they are very slow in retrieving and putting back their plate. I am worried that this will lead to increased variability in my cell culture experiment. This is a serious question. I was wondering if anyone else also has slow undergrads and what the best way to deal with them is?

I was thinking about either buying a new Co2 incubator and putting a no "undergrad" sign on it or having a seminar on how to open and close Co2 incubators in timely fashion!

Your help is greatly appreciated!

Geliki