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Why must cotton plugs be kept dry during the process media preparation?
Wiki User
∙ 10y ago
cotton plugs be kept dry during the process media prepration because in moist cotton many microorganisms are present so if we take dry cotton plugs , then the chances of contamination will be less.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agocotton plug used should be dry since when we heat or sterilize the Media water vapours are generated which can then be absorbed by the cotton to some extent , and wet cotton sometime may slip inside the flask or container use and there may be a chance of contamination
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