Storage cellars generally have certain requirements in terms of temperature, humidity and lighting conditions in order to maintain and optimize the quality and taste of the beverages. In the past, these cellars were mainly used to store beer, which is why they are also known colloquially as beer cellars.
A storage cellar can be underground or above ground and is often made of bricks, stones or other durable building materials to guarantee a constant temperature and humidity. Air conditioning systems are often installed to regulate the ambient conditions.