Temperature control You can adjust the temperature of the CDA FWC304BL Wine Cooler to anywhere between 5°C and 20°C. You can keep the wine cooled for the perfect drink, or closer to room temperature if you want a long-term storage. Humidity controlled The humidity is kept at 50 - 80%, the perfect level for storing wine. The CDA FWC304BL Wine Cooler is the perfect environment for your collection.