why is the agar cooled before pouring into the dishes
health advisory
Hospital
Doctor Yu
2007-11-8 19:08:47
Answers:
After melting, agar is let to cool slightly, then poured into petri dishes and allowed to cool entirely. If the petri dishes are plastic, they may melt when they come in contact with very hot agar; therefore the agar must cool somewhat before being poured.
Sometimes molten agar is poured on top of microbes already placed in the dish.
What might happen if the molten agar was too hot?
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