Anteroom
Short definitionThe buffer space in front of a cold room door. It cuts down the warm, humid air that comes in when the door opens.
If a freezer room door opens straight to the outside, warm and humid air comes in every time it opens. That air turns to frost on the evaporator and ice around the door. An anteroom puts a cool buffer in between.
An anteroom is usually held between 0 °C and +10 °C and no product is stored in it. The doors of several rooms can open onto the same anteroom. In most cold stores the loading dock doors are in the anteroom as well.