Disclosed is a computer-implemented method comprising: obtaining first data indicative of electric power supplied to a cooling apparatus during a cooling operation on a biological sample, the cooling operation having a given cooling condition; obtaining second data associated with a reference cooling condition; determining, based on the first data and the second data, whether the given cooling condition has a predetermined relationship with the reference cooling condition; and in response to a determination, by the determining, that the given cooling condition has the predetermined relationship with the reference cooling condition, outputting a control signal. The given cooling condition for the “live” data cooling operation may thus be validated against a reference cooling condition.