Can a fridge erm freeze chilled stuff?

manalishi:
.There should be a qualification at some level for this work I always figured,obviously not ADR level grade but maybe a specialist component of the CPC farceathon.

You’re not wrong there with that statement. The food chain requirement for refrigeration at engineer and storage facility level is very high and scrutinised by auditors regularly, Then the transport side just lets it all down, nothing stopping anyone from driving a reefer which is mindless and the reason why the checks and the paperwork trail at each end have to be so high.