How is Holmesdale House’s hygiene rating worked out?

Our food safety inspector is from East Sussex County Council, their main responsibility is to determine the following:

How hygienically the ingredients are handled, how it’s prepared, cooked, reheated, cooled and stored.
The condition of the structure of building – the cleanliness, layout, lighting ventilation and facilities.
What the Managers do to ensure food is safe, so that the officer can be confident that these standards will be maintained in the future.