A plate is generally considered countable if it has between 30 and 3000 colonies.
Anything that can be counted in numbers is called countable. for example, spoons, brushes, etc.
A plate that has many or more than 3000 colonies than that plate will be considered uncountable because beyond that number it will be not possible to count. This plate will have a limitation on its own which will limit between 30 and 3000. A culture plate typically consists of only that much amount of data in itself, as beyond that it is not possible to read.
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