The measured energy results would have been influenced
by a range of factors, such as freezer and ambient temperature,
food weight added and its temperature, increased door
openings (also compounded by high ambient humidity), energy
class level etc. However, the freezer and ambient conditions
were chosen to represent average conditions from UK
and European surveys, and the door opening regime was
designed to be typical of domestic use. In addition, the bestselling
appliance chosen was typical of the most commonly
found energy class level for new freezers. That being the case,
the results probably reflect an average energy impact rather
than a maximum impact, but as with the types of food discussed
above, it is not expected that reasonable changes to
any of these factors would reverse the balance of saved food
over energy